million or 6.1 % , to $ 20.8 million from $ 19.6 million for the year ended december 31 , 2011. this increase is primarily related to an increase in shipments in calendar year 2012. in the product revenue category , there were 1,136 fuel cell systems shipped for the year ended december 31 , 2012 as compared to 984 fuel cell systems shipped for the year ended december 31 , 2011. service revenue : service revenue generally includes revenue from our service and maintenance contracts , hydrogen contracts , spare parts , and leased units . service revenue for the year ended december 31 , 2013 increased $ 3.1 million or 84.2 % , to $ 6.7 million from $ 3.6 million for the year ended december 31 , 2012. the increase is primarily related to new gencare service contracts placed by existing customers during 2013 . 27 service revenue for the year ended december 31 , 2012 decreased $ 16,000 or 0.4 % , to $ 3.6 million from $ 3.6 million for the year ended december 31 , 2011. the decrease is primarily related to a decline in spare part sales , partly offset by new service contracts placed by existing customers during 2012. research and development contract revenue . research and development contract revenue primarily relates to cost reimbursement research and development contracts associated with the development of pem fuel cell technology . we generally share in the cost of these programs with our cost-sharing percentages generally ranging from 30 % to 50 % of total project costs . revenue from time and material contracts is recognized on the basis of hours expended plus other reimbursable contract costs incurred during the period . we expect to continue certain research and development contract work that is related to our current product development efforts . research and development contract revenue for the year ended december 31 , 2013 decreased $ 0.2 million , or 12.0 % , to $ 1.5 million from $ 1.7 million for the year ended december 31 , 2012. the decrease is primarily related to a reduced effort on three funded projects that are complete or near completion , partially offset by the start of a new project . research and development contract revenue for the year ended december 31 , 2012 decreased $ 2.2 million , or 56.2 % , to $ 1.7 million from $ 3.9 million for the year ended december 31 , 2011. the decrease is primarily related to fewer active contracts during 2012. cost of product revenue . cost of product revenue includes direct material and labor costs , warranty cost , and an allocation of overhead costs that relate to the manufacture of gendrive products . cost of product revenue for the year ended december 31 , 2013 decreased $ 5.0 million , or 19.5 % , to $ 20.4 million from $ 25.4 million for the year ended december 31 , 2012. the decrease in the cost of product revenue was primarily related to a decline in the number of units shipped in 2013 compared to 2012. during the year ended december 31 , 2013 , in the cost of product revenue category , we shipped 918 fuel cell systems to end customers as compared to 1,136 fuel cell systems shipped during the year ended december , 2012. cost of product revenue for the year ended december 31 , 2012 increased $ 2.8 million , or 12.1 % , to $ 25.4 million from $ 22.6 million for the year ended december 31 , 2011. the increase in the cost of product revenue was primarily related to the increase in the number of units shipped in 2012 compared to 2011. during the year ended december 31 , 2012 , in the cost of product and service revenue category , we shipped 1,136 fuel cell systems to end customers as compared to 984 fuel cell systems shipped during the year ended december , 2011. cost of service revenue . cost of service revenue includes the labor and material costs incurred for our product service and maintenance contracts , our hydrogen contracts , replacement parts , rental units , and leased units . in addition , cost of service revenue also includes allocation of overhead costs that relate to the servicing of our gendrive products . cost of service revenue for the year ended december 31 , 2013 increased $ 2.6 million , or 21.3 % , to $ 14.9 million from $ 12.3 million for the year ended december 31 , 2012. the increase in the cost of service revenue was primarily related to a higher number of gencare service contracts in 2013 ( including service personnel to maintain these contracts ) which was offset by additional expenses for unanticipated warranty claims arising from gendrive component quality issues that were recorded during the year ended december 31 , 2012. cost of service revenue for the year ended december 31 , 2012 increased $ 4.3 million , or 53.0 % , to $ 12.3 million from $ 8.0 million for the year ended december 31 , 2011. the increase in the cost of service revenue was primarily related to additional expenses for unanticipated warranty claims arising from gendrive component quality issues that were recorded during the year ended december 31 , 2012 , coupled with a higher number of gencare service contracts in 2012 ( including service personnel to maintain these contracts ) . cost of research and development contract revenue . cost of research and development contract revenue includes costs associated with research and development contracts including : cash and non-cash compensation and benefits for engineering and related support staff , fees paid to outside suppliers for subcontracted components and services , fees paid to consultants for services provided , materials and supplies used and other directly allocable general overhead costs allocated to specific research and development contracts . story_separator_special_tag selling prices will be analyzed on a more frequent basis if a significant change in the company 's business necessitates a more timely analysis or if the company experiences significant variances in its selling prices . once relative selling prices are determined , the company proportionately allocates the sale consideration to each element of the arrangement . the allocated sales consideration related to fuel cell systems and equipment , spare parts , and hydrogen is recognized as revenue at shipment if title and risk of loss have passed to the customer , there is persuasive evidence of an arrangement , the sales price is fixed or determinable , collection of the related receivable is reasonably assured , and customer acceptance criteria , if any , have been successfully demonstrated . the allocated sales consideration related to installation , service , maintenance , and hydrogen delivery infrastructure is generally recognized as revenue when completed or on a straight-line basis over the term of the contract , as appropriate . the company does not include a right of return on its products other than rights related to warranty provisions that permit repair or replacement of defective goods . the company accrues for anticipated warranty costs at the same time that revenue is recognized for the related product . the company has also sold extended warranty contracts that generally provide for a five to ten year warranty from the date of product installation . these types of contacts are accounted for as a separate deliverable , and accordingly , revenue generated from these transactions is deferred and recognized in income over the warranty period generally on a straight-line basis . additionally , the company may enter into annual service and maintenance contracts that are billed monthly . revenue generated from these transactions is recognized in income on a straight-line basis over the term of the contract . contract accounting is used for research and development contract revenue , which primarily relates to cost reimbursement research and development contracts associated with the development of pem fuel cell technology . the company generally shares in the cost of these programs with cost sharing percentages generally ranging from 30 % to 50 % of total project costs . revenue from time and material contracts is recognized on the basis of hours expended plus other reimbursable contract costs incurred during the period . all allowable work performed through the end of each calendar quarter is billed , subject to limitations in the respective contracts . product warranty reserve : our gendrive products are generally sold with a one to two-year product warranty that commences on the product installation date . we currently estimate the costs of satisfying warranty claims based on an analysis of past experience and provide for future claims in the period the revenue is recognized . the company 's product and service warranty reserve as of december 31 , 2013 is approximately $ 1.6 million and is included in product warranty reserve in the consolidated balance sheets . included in this balance is approximately $ 1.2 million related to specific gendrive component quality issues that were identified during the year ended december 31 , 2012 . 34 in addition to the standard product warranty , we have entered into certain contracts with customers that include extended warranty and maintenance terms of five to ten years from the date of installation . revenue generated from these transactions is deferred and recognized in income over the warranty period . the fair value of the extended warranty and maintenance deliverable has been estimated using the projected cash outflows to meet the obligations in the related contract . projected cash outflows have been determined using estimated product run hours , failure rates and other assumptions based on the company 's historical experience . valuation of long-lived assets : we assess the impairment of long-lived assets , including identifiable intangible assets , whenever events or changes in circumstances indicate that the carrying value may not be recoverable . factors we consider important that could trigger an impairment review include , but are not limited to , the following : significant underperformance relative to expected historical or projected future operating results ; significant changes in the manner of our use of the acquired assets or the strategy for our overall business ; significant negative industry or economic trends ; significant decline in our stock price for a sustained period ; and our market capitalization relative to net book value . when we determine that the carrying value of long-lived assets , including identifiable intangible assets , may not be recoverable based upon the existence of one or more of the above indicators of impairment , we would measure any impairment based upon the provisions of fasb asc no . 350-35-30-14 , intangibles - goodwill and other , and fasb asc no . 360-10-35-15 , impairment or disposal of long-lived assets , as appropriate . any resulting impairment loss could have a material adverse impact on our financial condition and results of operations . stock based compensation : we recognize stock-based compensation expense associated with the vesting of share based instruments in the consolidated statements of operations . determining the amount of stock-based compensation to be recorded requires us to develop estimates to be used in calculating the grant-date fair value of stock options . we calculate the grant-date fair values using the black-scholes valuation model . the black-scholes model requires us to make estimates of the following assumptions : expected volatility—the estimated stock price volatility was derived based upon the company 's actual stock prices over an historical period equal to the expected life of the options , which represents the company 's best estimate of expected volatility . expected option life—the company 's estimate of an expected option life was calculated in accordance with the simplified method for calculating the expected term assumption . the simplified method is a calculation based on the contractual life and vesting terms of

liquidity and capital resources our cash requirements relate primarily to working capital needed to operate and grow our business , including funding operating expenses , growth in inventory to support both shipments of new units and servicing the installed base , funding the growth in our genkey “ turn-key ” solution which also includes the installation of our customer 's hydrogen infrastructure as well as delivery of the hydrogen molecule , and continued development and expansion of our products . our ability to achieve profitability and meet future liquidity needs and capital requirements will depend upon numerous factors , including the timing and quantity of product orders and shipments ; the timing and amount of our operating expenses ; the timing and costs of working capital needs ; the timing and costs of building a sales base ; the timing and costs of developing marketing and distribution channels ; the timing and costs of product service requirements ; the timing and costs of hiring and training product staff ; the extent to which our products gain market acceptance ; the timing and costs of product development and introductions ; the extent of our ongoing and any new research and development programs ; and changes in our strategy or our planned activities . if we are unable to fund our operations without additional external financing and therefore can not sustain future operations , we may be required to delay , reduce and or cease our operations and or seek bankruptcy protection . we have experienced and continue to experience negative cash flows from operations and net losses . the company incurred net losses attributable to common shareholders of $ 62.7 million , $ 31.9 million and $ 27.5 million for the years ended december 31 , 2013 , 2012 and 2011 , respectively , and has an accumulated deficit of $ 849.4 million at december 31 , 2013. substantially all of our accumulated deficit been incurred in connection with our operating expenses , research and development expenses and from general and administrative costs associated with our operations .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```liquidity and capital resources our cash requirements relate primarily to working capital needed to operate and grow our business , including funding operating expenses , growth in inventory to support both shipments of new units and servicing the installed base , funding the growth in our genkey “ turn-key ” solution which also includes the installation of our customer 's hydrogen infrastructure as well as delivery of the hydrogen molecule , and continued development and expansion of our products . our ability to achieve profitability and meet future liquidity needs and capital requirements will depend upon numerous factors , including the timing and quantity of product orders and shipments ; the timing and amount of our operating expenses ; the timing and costs of working capital needs ; the timing and costs of building a sales base ; the timing and costs of developing marketing and distribution channels ; the timing and costs of product service requirements ; the timing and costs of hiring and training product staff ; the extent to which our products gain market acceptance ; the timing and costs of product development and introductions ; the extent of our ongoing and any new research and development programs ; and changes in our strategy or our planned activities . if we are unable to fund our operations without additional external financing and therefore can not sustain future operations , we may be required to delay , reduce and or cease our operations and or seek bankruptcy protection . we have experienced and continue to experience negative cash flows from operations and net losses . the company incurred net losses attributable to common shareholders of $ 62.7 million , $ 31.9 million and $ 27.5 million for the years ended december 31 , 2013 , 2012 and 2011 , respectively , and has an accumulated deficit of $ 849.4 million at december 31 , 2013. substantially all of our accumulated deficit been incurred in connection with our operating expenses , research and development expenses and from general and administrative costs associated with our operations .
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 Suspicious Activity Report : million or 6.1 % , to $ 20.8 million from $ 19.6 million for the year ended december 31 , 2011. this increase is primarily related to an increase in shipments in calendar year 2012. in the product revenue category , there were 1,136 fuel cell systems shipped for the year ended december 31 , 2012 as compared to 984 fuel cell systems shipped for the year ended december 31 , 2011. service revenue : service revenue generally includes revenue from our service and maintenance contracts , hydrogen contracts , spare parts , and leased units . service revenue for the year ended december 31 , 2013 increased $ 3.1 million or 84.2 % , to $ 6.7 million from $ 3.6 million for the year ended december 31 , 2012. the increase is primarily related to new gencare service contracts placed by existing customers during 2013 . 27 service revenue for the year ended december 31 , 2012 decreased $ 16,000 or 0.4 % , to $ 3.6 million from $ 3.6 million for the year ended december 31 , 2011. the decrease is primarily related to a decline in spare part sales , partly offset by new service contracts placed by existing customers during 2012. research and development contract revenue . research and development contract revenue primarily relates to cost reimbursement research and development contracts associated with the development of pem fuel cell technology . we generally share in the cost of these programs with our cost-sharing percentages generally ranging from 30 % to 50 % of total project costs . revenue from time and material contracts is recognized on the basis of hours expended plus other reimbursable contract costs incurred during the period . we expect to continue certain research and development contract work that is related to our current product development efforts . research and development contract revenue for the year ended december 31 , 2013 decreased $ 0.2 million , or 12.0 % , to $ 1.5 million from $ 1.7 million for the year ended december 31 , 2012. the decrease is primarily related to a reduced effort on three funded projects that are complete or near completion , partially offset by the start of a new project . research and development contract revenue for the year ended december 31 , 2012 decreased $ 2.2 million , or 56.2 % , to $ 1.7 million from $ 3.9 million for the year ended december 31 , 2011. the decrease is primarily related to fewer active contracts during 2012. cost of product revenue . cost of product revenue includes direct material and labor costs , warranty cost , and an allocation of overhead costs that relate to the manufacture of gendrive products . cost of product revenue for the year ended december 31 , 2013 decreased $ 5.0 million , or 19.5 % , to $ 20.4 million from $ 25.4 million for the year ended december 31 , 2012. the decrease in the cost of product revenue was primarily related to a decline in the number of units shipped in 2013 compared to 2012. during the year ended december 31 , 2013 , in the cost of product revenue category , we shipped 918 fuel cell systems to end customers as compared to 1,136 fuel cell systems shipped during the year ended december , 2012. cost of product revenue for the year ended december 31 , 2012 increased $ 2.8 million , or 12.1 % , to $ 25.4 million from $ 22.6 million for the year ended december 31 , 2011. the increase in the cost of product revenue was primarily related to the increase in the number of units shipped in 2012 compared to 2011. during the year ended december 31 , 2012 , in the cost of product and service revenue category , we shipped 1,136 fuel cell systems to end customers as compared to 984 fuel cell systems shipped during the year ended december , 2011. cost of service revenue . cost of service revenue includes the labor and material costs incurred for our product service and maintenance contracts , our hydrogen contracts , replacement parts , rental units , and leased units . in addition , cost of service revenue also includes allocation of overhead costs that relate to the servicing of our gendrive products . cost of service revenue for the year ended december 31 , 2013 increased $ 2.6 million , or 21.3 % , to $ 14.9 million from $ 12.3 million for the year ended december 31 , 2012. the increase in the cost of service revenue was primarily related to a higher number of gencare service contracts in 2013 ( including service personnel to maintain these contracts ) which was offset by additional expenses for unanticipated warranty claims arising from gendrive component quality issues that were recorded during the year ended december 31 , 2012. cost of service revenue for the year ended december 31 , 2012 increased $ 4.3 million , or 53.0 % , to $ 12.3 million from $ 8.0 million for the year ended december 31 , 2011. the increase in the cost of service revenue was primarily related to additional expenses for unanticipated warranty claims arising from gendrive component quality issues that were recorded during the year ended december 31 , 2012 , coupled with a higher number of gencare service contracts in 2012 ( including service personnel to maintain these contracts ) . cost of research and development contract revenue . cost of research and development contract revenue includes costs associated with research and development contracts including : cash and non-cash compensation and benefits for engineering and related support staff , fees paid to outside suppliers for subcontracted components and services , fees paid to consultants for services provided , materials and supplies used and other directly allocable general overhead costs allocated to specific research and development contracts . story_separator_special_tag selling prices will be analyzed on a more frequent basis if a significant change in the company 's business necessitates a more timely analysis or if the company experiences significant variances in its selling prices . once relative selling prices are determined , the company proportionately allocates the sale consideration to each element of the arrangement . the allocated sales consideration related to fuel cell systems and equipment , spare parts , and hydrogen is recognized as revenue at shipment if title and risk of loss have passed to the customer , there is persuasive evidence of an arrangement , the sales price is fixed or determinable , collection of the related receivable is reasonably assured , and customer acceptance criteria , if any , have been successfully demonstrated . the allocated sales consideration related to installation , service , maintenance , and hydrogen delivery infrastructure is generally recognized as revenue when completed or on a straight-line basis over the term of the contract , as appropriate . the company does not include a right of return on its products other than rights related to warranty provisions that permit repair or replacement of defective goods . the company accrues for anticipated warranty costs at the same time that revenue is recognized for the related product . the company has also sold extended warranty contracts that generally provide for a five to ten year warranty from the date of product installation . these types of contacts are accounted for as a separate deliverable , and accordingly , revenue generated from these transactions is deferred and recognized in income over the warranty period generally on a straight-line basis . additionally , the company may enter into annual service and maintenance contracts that are billed monthly . revenue generated from these transactions is recognized in income on a straight-line basis over the term of the contract . contract accounting is used for research and development contract revenue , which primarily relates to cost reimbursement research and development contracts associated with the development of pem fuel cell technology . the company generally shares in the cost of these programs with cost sharing percentages generally ranging from 30 % to 50 % of total project costs . revenue from time and material contracts is recognized on the basis of hours expended plus other reimbursable contract costs incurred during the period . all allowable work performed through the end of each calendar quarter is billed , subject to limitations in the respective contracts . product warranty reserve : our gendrive products are generally sold with a one to two-year product warranty that commences on the product installation date . we currently estimate the costs of satisfying warranty claims based on an analysis of past experience and provide for future claims in the period the revenue is recognized . the company 's product and service warranty reserve as of december 31 , 2013 is approximately $ 1.6 million and is included in product warranty reserve in the consolidated balance sheets . included in this balance is approximately $ 1.2 million related to specific gendrive component quality issues that were identified during the year ended december 31 , 2012 . 34 in addition to the standard product warranty , we have entered into certain contracts with customers that include extended warranty and maintenance terms of five to ten years from the date of installation . revenue generated from these transactions is deferred and recognized in income over the warranty period . the fair value of the extended warranty and maintenance deliverable has been estimated using the projected cash outflows to meet the obligations in the related contract . projected cash outflows have been determined using estimated product run hours , failure rates and other assumptions based on the company 's historical experience . valuation of long-lived assets : we assess the impairment of long-lived assets , including identifiable intangible assets , whenever events or changes in circumstances indicate that the carrying value may not be recoverable . factors we consider important that could trigger an impairment review include , but are not limited to , the following : significant underperformance relative to expected historical or projected future operating results ; significant changes in the manner of our use of the acquired assets or the strategy for our overall business ; significant negative industry or economic trends ; significant decline in our stock price for a sustained period ; and our market capitalization relative to net book value . when we determine that the carrying value of long-lived assets , including identifiable intangible assets , may not be recoverable based upon the existence of one or more of the above indicators of impairment , we would measure any impairment based upon the provisions of fasb asc no . 350-35-30-14 , intangibles - goodwill and other , and fasb asc no . 360-10-35-15 , impairment or disposal of long-lived assets , as appropriate . any resulting impairment loss could have a material adverse impact on our financial condition and results of operations . stock based compensation : we recognize stock-based compensation expense associated with the vesting of share based instruments in the consolidated statements of operations . determining the amount of stock-based compensation to be recorded requires us to develop estimates to be used in calculating the grant-date fair value of stock options . we calculate the grant-date fair values using the black-scholes valuation model . the black-scholes model requires us to make estimates of the following assumptions : expected volatility—the estimated stock price volatility was derived based upon the company 's actual stock prices over an historical period equal to the expected life of the options , which represents the company 's best estimate of expected volatility . expected option life—the company 's estimate of an expected option life was calculated in accordance with the simplified method for calculating the expected term assumption . the simplified method is a calculation based on the contractual life and vesting terms of

