when complete , this transition will result in approximately doubling our available facility space and will substantially increase our production capacity of indirect printing machines and psc operations . this transition also results in a full consolidation of our production , research and development , sales and marketing and administrative teams under one combined facility . 40 initiating expansion of our north huntingdon , pa facility . upon completion , this expansion doubles the available psc production space for this facility and also expands our available space for research and development activities . opening our psc in italy . we opened our newest psc site in italy , which also serves as a machine sales center for the country . upgrading our united states pscs . we upgraded our united states pscs with new technology , effectively expanding our capacity with newer , faster machines to print products for customers . our united states pscs are certified to iso 9000:2008. significant developments with our machines . we committed significant resources in 2014 to the development of our machine technologies . during 2014 we introduced our exerial , s-max+ and innovent machine platforms and sold our first m-print unit . developments with our binder jetting technology and printable materials . we continued to evolve our qualified and printable materials capabilities . during 2014 , we commercialized our first near 100 % dense material , a nickel-based alloy . in addition , we introduced several materials capable of direct printing for research and development activities . our continued goal is to qualify an additional indirect or directly printed industrial material every six months . acquisitions . in march 2014 , we acquired mam and mwt which have enhanced our post-printing capabilities by providing specialty machining support ( mam ) and microwave technologies ( mwt ) which are a complementary element to certain of our 3d printing technologies . with our facilities expansion substantially behind us , and our new machine platforms gaining market attention , we plan to focus our attention in 2015 on the operational effectiveness of our business with the primary goal being the continued global adoption of our binder jetting technologies . this includes further expanding our business focus from predominantly prototyping activities and short-run production to series production , principally through our introduction of the exerial machine platform . we plan to complete an extensive strategic review of our businesses which will consider the markets we serve , our customers and our geographic footprint . we intend to place a firm emphasis of maximizing revenues from our 3d printing machines and continuing to grow our revenues from 3d printed and other products , materials and services . we also plan to continue to effectively manage our costs of production and operating expenses such that we align our spending plans with the anticipated growth of our business . how we measure our business we use several financial and operating metrics to measure our business . we use these metrics to assess the progress of our business , make decisions on where to allocate capital , time and technology investments , and assess longer-term performance within our marketplace . the key metrics are as follows : revenue . our revenue consists of sales of our 3d printing machines and 3d printed and other products , materials and services . 3d printing machines . 3d printing machine revenues consist of machine sales and equipment under leasing arrangements . 3d printing machine sales generally include ancillary equipment , materials , installation and training services , the value of a warranty and other optional products and or services . 3d printing machine sales are influenced by a number of factors including , among other things , ( i ) the adoption rate of our 3d printing technology , ( ii ) end-user product design and manufacturing activity , ( iii ) the capital expenditure budgets of end-users and potential end-users and ( iv ) other macroeconomic factors . purchases of our 3d printing machines , particularly our higher-end , higher-priced systems , typically involve long sales cycles . several factors can significantly affect revenue reported for our 3d printing machines for a given period including , among others , ( i ) the overall low unit volume of 3d printing machine sales , ( ii ) the sales mix of machines for a given period and ( iii ) the customer-driven acceleration or delay of orders and shipments of machines . 41 3d printed and other products , materials and services . 3d printed and other products , materials and services consist of sales of ( i ) products printed in our global psc network or manufactured through our excast strategy , ( ii ) consumable materials and replacement parts for our global installed base of 3d printing machines and ( iii ) services for maintenance and certain research and development activities . our pscs utilize our 3d printing machine technology to print products to the specifications of customers . in addition , our pscs also provide support and services such as pre-production collaboration prior to printing products for a customer . sales of consumable materials , replacement parts and service maintenance contracts are linked to the number of our 3d printing machines that are installed globally . other research and development contracts are a function of customer-specific needs in applying our additive manufacturing technologies . cost of sales and gross profit . our cost of sales consists primarily of labor ( related to our global workforce ) , materials ( for both the manufacture of 3d printing machines and for our psc operations ) and overhead to produce 3d printing machines and 3d printed and other products , materials and services . story_separator_special_tag operating expenses for 2013 were $ 21,246 compared with operating expenses of $ 20,215 for 2012 , an increase of $ 1,031 , or 5.1 % . operating expenses as a percentage of revenue were 53.8 % for 2013 , compared with 70.5 % for 2012. research and development expenses for 2013 were $ 5,127 compared with research and development expenses of $ 1,930 for 2012 , an increase of $ 3,197 , or 165.6 % . this increase was due primarily to ( i ) increased costs associated with our materials qualification activities , including additional research and development headcount , materials usage and facilities costs associated with our materials development laboratory in the united states and ( ii ) continued investment in enhancing our 3d printing machine technology for both direct and indirect printing . selling , general and administrative expenses for 2013 were $ 16,119 compared with selling , general and administrative expenses of $ 18,285 for 2012 , a decrease of $ 2,166 , or 11.8 % . this decrease was due principally to a net decrease in equity-based compensation expense for 2013 compared to 2012. the net decrease in equity- 45 based compensation expense is as a result of the absence of $ 7,735 in expense for 2012 related to the sale of common units by the majority member of the former limited liability company to another member and two executives of the former limited liability company . offsetting the net decrease in equity-based compensation were increases in selling , general and administrative expenses in 2013 compared to 2012 associated with ( i ) merger and acquisition related activities following our secondary public offering of common stock in september 2013 , ( ii ) increased professional service fees ( including legal , audit and other consulting expenses ) , ( iii ) increased personnel costs associated with an increased headcount ( including salaries and related benefits ) in making the transition from a private company to a publicly traded company and ( iv ) increased selling costs ( principally selling commissions for machine sale transactions ) . interest expense interest expense for 2014 was $ 144 compared with interest expense of $ 372 in 2013 , a decrease of $ 228 , or 61.3 % . this decrease was due principally to a lower average outstanding debt balance for 2014 , as compared to 2013 , mostly due to ( i ) the retirement of the demand note payable to a member in february 2013 and ( ii ) the settlement of debt held by variable interest entities in connection with our acquisition of certain related assets of those entities in march 2013. interest expense for 2013 was $ 372 compared with interest expense of $ 842 in 2012 , a decrease of $ 470 , or 55.8 % . this decrease was due principally to a lower average outstanding debt balance for 2013 , as compared to 2012 , mostly due to ( i ) the retirement of the demand note payable to a member in february 2013 and ( ii ) the settlement of debt held by variable interest entities in connection with our acquisition of certain related assets of those entities in march 2013. other income  net other income  net for 2014 was $ 210 compared with other income  net of $ 98 for 2013 and other income  net of $ 221 for 2012. amounts for all periods consist principally of interest income on cash deposits and other financing activity benefits . provision for income taxes the provision for income taxes for 2014 , 2013 and 2012 was $ 159 , $ 370 and $ 995 , respectively . the effective tax rate for 2014 , 2013 and 2012 was 0.7 % , 6.2 % and 11.5 % ( provision on a loss ) , respectively . for 2014 and 2013 , the effective tax rate differed from the u.s. federal statutory rate of 34.0 % primarily due to net changes in valuation allowances for the period . for 2012 , the effective tax rate differed from the u.s. federal statutory rate of 34.0 % primarily due to the effects of ( i ) limited liability company losses not subject to tax and ( ii ) net changes in valuation allowances for the period . we have provided a valuation allowance for our net deferred tax assets as a result of our inability to generate consistent net operating profits in jurisdictions in which we operate . as such , any benefit from deferred taxes in any of the periods presented in our consolidated financial statements has been fully offset by changes in the valuation allowance for net deferred tax assets . we continue to assess our future taxable income by jurisdiction based on ( i ) our recent historical operating results , ( ii ) the expected timing of reversal of temporary differences , ( iii ) various tax planning strategies that we may be able to enact in future periods , ( iv ) the impact of potential operating changes on our business and ( v ) our forecast results from operations in future periods based on available information at the end of each reporting period . to the extent that we are able to reach the conclusion that deferred tax assets are realizable based on any combination of the above factors , a reversal of existing valuation allowances may occur . 46 noncontrolling interests there was no net income attributable to noncontrolling interests for 2014. net income attributable to noncontrolling interests for 2013 was $ 138 compared with net income attributable to noncontrolling interests of $ 480 in 2012 , a decrease of $ 342 , or 71.3 % . changes in net income attributable to noncontrolling interests for all periods are as a result of the acquisition of net assets in the related variable interest entities completed during the quarter ended march 31 , 2013.

liquidity and capital resources we incurred net losses of approximately $ 21,843 , $ 6,317 and $ 9,688 for 2014 , 2013 and 2012 , respectively . prior to our reorganization , we operated as a limited liability company and were substantially supported by the continued financial support provided by our majority member . in connection with the completion of our initial public offering in february 2013 and our secondary public offering in september 2013 , we received total unrestricted net proceeds from the sale of our common stock of approximately $ 157,311. we believe that our existing capital resources will be sufficient to support our operations through january 1 , 2016. the following table summarizes the significant components of cash flows for each of the years ending december 31 : replace_table_token_9_th operating activities cash used for operating activities for 2014 was $ 28,932 compared with $ 20,192 for 2013. the increase of $ 8,740 , or 43.3 % , was mostly attributed to an increase in our net loss and cash outflows associated with accounts receivable ( based on the timing of sales and payments by customers ) and inventories ( based on an increase in manufacturing capacity ) . these amounts were offset by lower cash outflows associated with prepaid expenses and other current assets ( based on a reduction in increases of prepayments to vendors ) and deferred revenue and customer prepayments ( mostly due to the timing and amount of prepayments by customers ) .


 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 we incurred net losses of approximately $ 21,843 , $ 6,317 and $ 9,688 for 2014 , 2013 and 2012 , respectively . prior to our reorganization , we operated as a limited liability company and were substantially supported by the continued financial support provided by our majority member . in connection with the completion of our initial public offering in february 2013 and our secondary public offering in september 2013 , we received total unrestricted net proceeds from the sale of our common stock of approximately $ 157,311. we believe that our existing capital resources will be sufficient to support our operations through january 1 , 2016. the following table summarizes the significant components of cash flows for each of the years ending december 31 : replace_table_token_9_th operating activities cash used for operating activities for 2014 was $ 28,932 compared with $ 20,192 for 2013. the increase of $ 8,740 , or 43.3 % , was mostly attributed to an increase in our net loss and cash outflows associated with accounts receivable ( based on the timing of sales and payments by customers ) and inventories ( based on an increase in manufacturing capacity ) . these amounts were offset by lower cash outflows associated with prepaid expenses and other current assets ( based on a reduction in increases of prepayments to vendors ) and deferred revenue and customer prepayments ( mostly due to the timing and amount of prepayments by customers ) .
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 Suspicious Activity Report : when complete , this transition will result in approximately doubling our available facility space and will substantially increase our production capacity of indirect printing machines and psc operations . this transition also results in a full consolidation of our production , research and development , sales and marketing and administrative teams under one combined facility . 40 initiating expansion of our north huntingdon , pa facility . upon completion , this expansion doubles the available psc production space for this facility and also expands our available space for research and development activities . opening our psc in italy . we opened our newest psc site in italy , which also serves as a machine sales center for the country . upgrading our united states pscs . we upgraded our united states pscs with new technology , effectively expanding our capacity with newer , faster machines to print products for customers . our united states pscs are certified to iso 9000:2008. significant developments with our machines . we committed significant resources in 2014 to the development of our machine technologies . during 2014 we introduced our exerial , s-max+ and innovent machine platforms and sold our first m-print unit . developments with our binder jetting technology and printable materials . we continued to evolve our qualified and printable materials capabilities . during 2014 , we commercialized our first near 100 % dense material , a nickel-based alloy . in addition , we introduced several materials capable of direct printing for research and development activities . our continued goal is to qualify an additional indirect or directly printed industrial material every six months . acquisitions . in march 2014 , we acquired mam and mwt which have enhanced our post-printing capabilities by providing specialty machining support ( mam ) and microwave technologies ( mwt ) which are a complementary element to certain of our 3d printing technologies . with our facilities expansion substantially behind us , and our new machine platforms gaining market attention , we plan to focus our attention in 2015 on the operational effectiveness of our business with the primary goal being the continued global adoption of our binder jetting technologies . this includes further expanding our business focus from predominantly prototyping activities and short-run production to series production , principally through our introduction of the exerial machine platform . we plan to complete an extensive strategic review of our businesses which will consider the markets we serve , our customers and our geographic footprint . we intend to place a firm emphasis of maximizing revenues from our 3d printing machines and continuing to grow our revenues from 3d printed and other products , materials and services . we also plan to continue to effectively manage our costs of production and operating expenses such that we align our spending plans with the anticipated growth of our business . how we measure our business we use several financial and operating metrics to measure our business . we use these metrics to assess the progress of our business , make decisions on where to allocate capital , time and technology investments , and assess longer-term performance within our marketplace . the key metrics are as follows : revenue . our revenue consists of sales of our 3d printing machines and 3d printed and other products , materials and services . 3d printing machines . 3d printing machine revenues consist of machine sales and equipment under leasing arrangements . 3d printing machine sales generally include ancillary equipment , materials , installation and training services , the value of a warranty and other optional products and or services . 3d printing machine sales are influenced by a number of factors including , among other things , ( i ) the adoption rate of our 3d printing technology , ( ii ) end-user product design and manufacturing activity , ( iii ) the capital expenditure budgets of end-users and potential end-users and ( iv ) other macroeconomic factors . purchases of our 3d printing machines , particularly our higher-end , higher-priced systems , typically involve long sales cycles . several factors can significantly affect revenue reported for our 3d printing machines for a given period including , among others , ( i ) the overall low unit volume of 3d printing machine sales , ( ii ) the sales mix of machines for a given period and ( iii ) the customer-driven acceleration or delay of orders and shipments of machines . 41 3d printed and other products , materials and services . 3d printed and other products , materials and services consist of sales of ( i ) products printed in our global psc network or manufactured through our excast strategy , ( ii ) consumable materials and replacement parts for our global installed base of 3d printing machines and ( iii ) services for maintenance and certain research and development activities . our pscs utilize our 3d printing machine technology to print products to the specifications of customers . in addition , our pscs also provide support and services such as pre-production collaboration prior to printing products for a customer . sales of consumable materials , replacement parts and service maintenance contracts are linked to the number of our 3d printing machines that are installed globally . other research and development contracts are a function of customer-specific needs in applying our additive manufacturing technologies . cost of sales and gross profit . our cost of sales consists primarily of labor ( related to our global workforce ) , materials ( for both the manufacture of 3d printing machines and for our psc operations ) and overhead to produce 3d printing machines and 3d printed and other products , materials and services . story_separator_special_tag operating expenses for 2013 were $ 21,246 compared with operating expenses of $ 20,215 for 2012 , an increase of $ 1,031 , or 5.1 % . operating expenses as a percentage of revenue were 53.8 % for 2013 , compared with 70.5 % for 2012. research and development expenses for 2013 were $ 5,127 compared with research and development expenses of $ 1,930 for 2012 , an increase of $ 3,197 , or 165.6 % . this increase was due primarily to ( i ) increased costs associated with our materials qualification activities , including additional research and development headcount , materials usage and facilities costs associated with our materials development laboratory in the united states and ( ii ) continued investment in enhancing our 3d printing machine technology for both direct and indirect printing . selling , general and administrative expenses for 2013 were $ 16,119 compared with selling , general and administrative expenses of $ 18,285 for 2012 , a decrease of $ 2,166 , or 11.8 % . this decrease was due principally to a net decrease in equity-based compensation expense for 2013 compared to 2012. the net decrease in equity- 45 based compensation expense is as a result of the absence of $ 7,735 in expense for 2012 related to the sale of common units by the majority member of the former limited liability company to another member and two executives of the former limited liability company . offsetting the net decrease in equity-based compensation were increases in selling , general and administrative expenses in 2013 compared to 2012 associated with ( i ) merger and acquisition related activities following our secondary public offering of common stock in september 2013 , ( ii ) increased professional service fees ( including legal , audit and other consulting expenses ) , ( iii ) increased personnel costs associated with an increased headcount ( including salaries and related benefits ) in making the transition from a private company to a publicly traded company and ( iv ) increased selling costs ( principally selling commissions for machine sale transactions ) . interest expense interest expense for 2014 was $ 144 compared with interest expense of $ 372 in 2013 , a decrease of $ 228 , or 61.3 % . this decrease was due principally to a lower average outstanding debt balance for 2014 , as compared to 2013 , mostly due to ( i ) the retirement of the demand note payable to a member in february 2013 and ( ii ) the settlement of debt held by variable interest entities in connection with our acquisition of certain related assets of those entities in march 2013. interest expense for 2013 was $ 372 compared with interest expense of $ 842 in 2012 , a decrease of $ 470 , or 55.8 % . this decrease was due principally to a lower average outstanding debt balance for 2013 , as compared to 2012 , mostly due to ( i ) the retirement of the demand note payable to a member in february 2013 and ( ii ) the settlement of debt held by variable interest entities in connection with our acquisition of certain related assets of those entities in march 2013. other income  net other income  net for 2014 was $ 210 compared with other income  net of $ 98 for 2013 and other income  net of $ 221 for 2012. amounts for all periods consist principally of interest income on cash deposits and other financing activity benefits . provision for income taxes the provision for income taxes for 2014 , 2013 and 2012 was $ 159 , $ 370 and $ 995 , respectively . the effective tax rate for 2014 , 2013 and 2012 was 0.7 % , 6.2 % and 11.5 % ( provision on a loss ) , respectively . for 2014 and 2013 , the effective tax rate differed from the u.s. federal statutory rate of 34.0 % primarily due to net changes in valuation allowances for the period . for 2012 , the effective tax rate differed from the u.s. federal statutory rate of 34.0 % primarily due to the effects of ( i ) limited liability company losses not subject to tax and ( ii ) net changes in valuation allowances for the period . we have provided a valuation allowance for our net deferred tax assets as a result of our inability to generate consistent net operating profits in jurisdictions in which we operate . as such , any benefit from deferred taxes in any of the periods presented in our consolidated financial statements has been fully offset by changes in the valuation allowance for net deferred tax assets . we continue to assess our future taxable income by jurisdiction based on ( i ) our recent historical operating results , ( ii ) the expected timing of reversal of temporary differences , ( iii ) various tax planning strategies that we may be able to enact in future periods , ( iv ) the impact of potential operating changes on our business and ( v ) our forecast results from operations in future periods based on available information at the end of each reporting period . to the extent that we are able to reach the conclusion that deferred tax assets are realizable based on any combination of the above factors , a reversal of existing valuation allowances may occur . 46 noncontrolling interests there was no net income attributable to noncontrolling interests for 2014. net income attributable to noncontrolling interests for 2013 was $ 138 compared with net income attributable to noncontrolling interests of $ 480 in 2012 , a decrease of $ 342 , or 71.3 % . changes in net income attributable to noncontrolling interests for all periods are as a result of the acquisition of net assets in the related variable interest entities completed during the quarter ended march 31 , 2013.

