the average exchange rates presented below , as provided by the bank of canada , are indicative of the weighted average rates we used to translate the revenues and expenses of our canadian operations into u.s. dollars ( rates expressed as the number of u.s. dollars to one canadian dollar for each period reported ) : replace_table_token_3_th critical accounting policies use of estimates . the preparation of financial statements in accordance with generally accepted accounting principles in the u.s. requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period . the financial statements include estimates based on currently available information and our judgment as to the outcome of future conditions and circumstances . significant estimates in these financial statements include pension expense , inventory provisions , useful lives and impairment of long-lived assets , warranty accruals , income tax provision , goodwill impairment analysis , stock-based compensation , allowance for doubtful accounts and estimates related to purchase price allocation . changes in the status of certain facts or circumstances could result in material changes to the estimates used in the preparation of the financial statements and actual results could differ from the estimates and assumptions . revenue recognition . revenue is recognized when ( 1 ) persuasive evidence of an arrangement exists , ( 2 ) delivery occurs , ( 3 ) the sales price is fixed or determinable , ( 4 ) collectability is reasonably assured and ( 5 ) customer acceptance criteria , if any , has been successfully demonstrated . revenue is recognized on the sale of goods , when the significant risks and rewards of ownership have been transferred to the buyer upon delivery , provided that the company maintains neither managerial involvement to the degree usually associated with ownership , nor effective control over the goods sold . there are no further obligations on the part of the company subsequent to revenue recognition , except when customers have the right of return or when the company warrants the product . the company records a provision for future returns , based on historical experience at the time of shipment of products to customers . the company warrants some of its products against defects in design , materials and workmanship for periods ranging from one to three years depending on the model . the company records a provision for estimated future warranty costs based on the historical relationship of warranty claims to sales at the time of shipment of products to customers . the company periodically reviews the adequacy of its product warranties and adjusts , if necessary , the warranty percentage and accrued warranty reserve for actual experience . 22 service revenue primarily consists of preventative maintenance and monitoring services , as well as the provision of after-market support related to equipment sales and project commissioning service revenue . revenues from these services are recognized when the service is performed and the customer has accepted the work . inventories . we value inventories at the lower of cost or market . if a write down to the current market value is necessary , the market value can not be greater than the net realizable value , which is defined as selling price less costs to complete and dispose , and can not be lower than the net realizable value less a normal profit margin . we also continually evaluate the composition of our inventory and identify obsolete , slow-moving and excess inventories . inventory items identified as obsolete , slow-moving or excess are evaluated to determine if reserves are required . if we were not able to achieve our expectations of the net realizable value of the inventory at current market value , we would have to adjust our reserves accordingly . we attempt to accurately estimate future product demand to properly adjust inventory levels for our standard products . however , significant unanticipated changes in demand could have a significant impact on the value of inventory and of operating results . impairment of long-lived assets . we review long-lived assets for impairment including intangible assets with determinable useful lives whenever events or changes in circumstances indicate that the carrying value of the corresponding asset group may not be realizable . if an evaluation is required , the estimated future undiscounted cash flows associated with the asset group are compared to the asset group 's carrying amount to determine if an impairment of such asset is necessary . this requires us to make long-term forecasts of the future revenues and costs related to the assets groups subject to review . forecasts require assumptions about demand for our products and future market conditions . estimating future cash flows requires significant judgment , and our projections may vary from cash flows eventually realized . future events and unanticipated changes to assumptions could require a provision for impairment in a future period . the effect of any impairment would be reflected in operating income in the consolidated statements of operations . in addition , we estimate the useful lives of our long-lived assets and other intangibles and periodically review these estimates to determine whether these lives are appropriate . goodwill and indefinite lived intangible assets . goodwill and other intangible assets with indefinite useful lives are not amortized , but are evaluated for impairment annually , or immediately if conditions indicate that impairment could exist . the evaluation requires an impairment test to identify potential goodwill impairment and measure the amount of a goodwill impairment loss . the test compares the fair value of a reporting unit with its carrying amount , including goodwill . if the carrying amount of a reporting unit exceeds its fair value , the company measures the amount of the impairment loss . the goodwill impairment testing involves significant estimates . story_separator_special_tag we are required to meet certain minimum working capital ratios , minimum ebitda levels and effective tangible net worth levels for each fiscal quarter , as set forth in the 2017 cad arca amendment and the 2018 cad arca amendment . pursuant to the 2018 cad arca amendment , bmo waived defaults on all financial covenants existing as of december 31 , 2017 , for which we were not in compliance . as of december 31 , 2017 , we had approximately $ 3.5 million in u.s. dollar equivalents outstanding under our canadian credit facilities . our borrowings consisted of approximately $ 2.9 million outstanding under facility a , $ 0.1 million outstanding under facility b and $ 0.5 million outstanding under facility c. as of december 31 , 2016 , we had approximately $ 5.2 million in u.s. dollar equivalents outstanding under our canadian credit facilities . our borrowings consisted of approximately $ 4.4 million outstanding under facility a , $ 0.2 million outstanding under facility b and $ 0.6 million outstanding under facility c. united states credit facilities on december 2 , 2014 , our existing u.s. credit facilities ( the “ u.s . facilities ” ) were amended in order to provide a $ 5.0 million term loan facility that was used for the acquisition of titan . in april 2016 , we entered into an amended and restated credit agreement ( “ us arca ” ) with bmo with respect to our u.s. facilities that replaced and superseded all of our businesses ' prior financing arrangements with the bank . additionally , defaults relating to the breach of certain financial covenants under the prior financing arrangements with bmo existing as of december 31 , 2015 were waived by bmo . the us arca was further amended ( the “ 2017 us arca amendment ” ) on march 15 , 2017 , and again on march 28 , 2018 ( the “ 2018 us arca amendment ” ) . the 2018 us arca amendment extended the term of our us facilities to april 1 , 2020. our u.s. facilities , as amended and restated , provided for up to $ 19.1 million usd consisting of a $ 14.0 million usd facility a to finance ongoing operations , a $ 5.0 million usd facility b that financed the acquisition of titan , and a new $ 0.1 million revolving credit facility provided pursuant to a mastercard is to be used to pay for and temporarily finance our day-to-day business expenses and for no other purpose . the 2017 us arca amendment increased the usd facility a to $ 15.0 million , increasing the total amount of loans available under the u.s. facilities to $ 20.1 million usd . usd facility a , as amended and restated per 2017 us arca , bore interest , at our option , at bmo 's prime rate plus 1.00 % per annum on u.s. prime rate loans , or an adjusted libor rate plus 2.25 % per annum on eurodollar loans . pursuant to the 2018 us arca amendment , borrowings under facility a bears interest , at our option , at the bmo 's prime rate plus 0.75 % per annum on u.s. prime rate loans , or an adjusted libor rate plus 2.00 % per annum on eurodollar loans . usd facility a had a maturity date of july 31 , 2017 , which was extended to july 31 , 2018 pursuant to the 2017 us arca amendment . the 2018 us arca amendment extended the maturity of borrowings under facility a to april 1 , 2020. consistent with the terms of the historical usd facility a revolver , both a subjective acceleration clause and lockbox arrangement exist , as such the usd facility a revolver will continue to be presented as a current liability . the company believes , based upon historical experience , that it is probable that the usd facility a revolver will remain in place to fund operations through the maturity of the borrowings in april 2020 . 30 borrowings under usd facility b bear interest , at our option , at u.s. base rate plus 1.25 % per annum on u.s. prime loans , or an adjusted libor rate plus 2.50 % per annum on eurodollar loans . pursuant to the us arca , our quarterly principal payments were reduced to $ 31 usd for calendar year 2016 , with the original amortization schedule continuing to apply to all quarterly principal payments made after december 31 , 2016 , and the final maturity date of december 2 , 2019. the 2017 us arca amendment reduced the scheduled quarterly principal payments to $ 31 usd , commencing march 31 , 2017 , to continue until july 31 , 2018 , with a balloon payment of $ 4,438 on july 31 , 2018. pursuant to the 2018 us arca amendment , quarterly principal repayments beginning on july 31 , 2018 are increased to $ 100 and will continue until march 31 , 2020 with a balloon payment of $ 2,338 due on april 1 , 2020. the 2018 us arca amendment did not change the facility b interest rate . pursuant to the us arca , as amended by the 2017 us arca amendment and the 2018 us arca amendment , financial covenant testing is performed on our consolidated financial statements . we are required to meet certain minimum working capital ratios , minimum ebitda levels and effective tangible net worth levels for each fiscal quarter , as set forth in the 2017 us arca amendment and the 2018 us arca amendment . on march 6 , 2017 , we received a waiver from bmo on certain financial covenants existing as of december 31 , 2016. on march 28 , 2018 , pursuant to the 2018 us arca amendment , bmo waived defaults on all financial covenants existing as of december 31 , 2017 for which we

cash provided by financing activities . cash provided by our financing activities was $ 0.9 million during the year ended december 31 , 2017 , as compared to $ 10.0 million during the year ended december 31 , 2016. during 2017 , borrowings under our revolving credit facilities increased by $ 4.1 million . working capital . as of december 31 , 2017 , we had working capital of $ 1.6 million , including $ 0.2 million of cash and cash equivalents , compared to working capital of $ 2.4 million , including $ 0.2 million of cash and cash equivalents at december 31 , 2016. our current assets were approximately 1.0 times our current liabilities at december 31 , 2017 , as compared to 1.1 times at december 31 , 2016. at december 31 , 2017 and 2016 , we had $ 3.3 and $ 1.5 million , respectively , of available and unused borrowing capacity from our revolving credit facilities , without taking into account cash and equivalents on hand . however , the availability of this capacity under our revolving credit facilities is subject to restrictions on the use of proceeds and is dependent upon our ability to satisfy certain financial and operating covenants , including financial ratios . assessment of liquidity . at december 31 , 2017 , we had total debt of $ 29.4 million and $ 0.2 million of cash and cash equivalents on hand . we have historically met our cash needs through a combination of cash flows from operating activities and bank borrowings under our revolving credit facilities . our cash requirements are generally for operating activities , debt repayment , capital improvements and acquisitions . in addition , as further discussed below , our credit facilities maturity dates have been extended until april 1 , 2020. the financial statements included in this annual report have been prepared assuming that we will continue as a going concern , which contemplates the recoverability of assets and the satisfaction of liabilities in the normal course of business .


 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.
     ```cash provided by financing activities . cash provided by our financing activities was $ 0.9 million during the year ended december 31 , 2017 , as compared to $ 10.0 million during the year ended december 31 , 2016. during 2017 , borrowings under our revolving credit facilities increased by $ 4.1 million . working capital . as of december 31 , 2017 , we had working capital of $ 1.6 million , including $ 0.2 million of cash and cash equivalents , compared to working capital of $ 2.4 million , including $ 0.2 million of cash and cash equivalents at december 31 , 2016. our current assets were approximately 1.0 times our current liabilities at december 31 , 2017 , as compared to 1.1 times at december 31 , 2016. at december 31 , 2017 and 2016 , we had $ 3.3 and $ 1.5 million , respectively , of available and unused borrowing capacity from our revolving credit facilities , without taking into account cash and equivalents on hand . however , the availability of this capacity under our revolving credit facilities is subject to restrictions on the use of proceeds and is dependent upon our ability to satisfy certain financial and operating covenants , including financial ratios . assessment of liquidity . at december 31 , 2017 , we had total debt of $ 29.4 million and $ 0.2 million of cash and cash equivalents on hand . we have historically met our cash needs through a combination of cash flows from operating activities and bank borrowings under our revolving credit facilities . our cash requirements are generally for operating activities , debt repayment , capital improvements and acquisitions . in addition , as further discussed below , our credit facilities maturity dates have been extended until april 1 , 2020. the financial statements included in this annual report have been prepared assuming that we will continue as a going concern , which contemplates the recoverability of assets and the satisfaction of liabilities in the normal course of business .
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 Suspicious Activity Report : the average exchange rates presented below , as provided by the bank of canada , are indicative of the weighted average rates we used to translate the revenues and expenses of our canadian operations into u.s. dollars ( rates expressed as the number of u.s. dollars to one canadian dollar for each period reported ) : replace_table_token_3_th critical accounting policies use of estimates . the preparation of financial statements in accordance with generally accepted accounting principles in the u.s. requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period . the financial statements include estimates based on currently available information and our judgment as to the outcome of future conditions and circumstances . significant estimates in these financial statements include pension expense , inventory provisions , useful lives and impairment of long-lived assets , warranty accruals , income tax provision , goodwill impairment analysis , stock-based compensation , allowance for doubtful accounts and estimates related to purchase price allocation . changes in the status of certain facts or circumstances could result in material changes to the estimates used in the preparation of the financial statements and actual results could differ from the estimates and assumptions . revenue recognition . revenue is recognized when ( 1 ) persuasive evidence of an arrangement exists , ( 2 ) delivery occurs , ( 3 ) the sales price is fixed or determinable , ( 4 ) collectability is reasonably assured and ( 5 ) customer acceptance criteria , if any , has been successfully demonstrated . revenue is recognized on the sale of goods , when the significant risks and rewards of ownership have been transferred to the buyer upon delivery , provided that the company maintains neither managerial involvement to the degree usually associated with ownership , nor effective control over the goods sold . there are no further obligations on the part of the company subsequent to revenue recognition , except when customers have the right of return or when the company warrants the product . the company records a provision for future returns , based on historical experience at the time of shipment of products to customers . the company warrants some of its products against defects in design , materials and workmanship for periods ranging from one to three years depending on the model . the company records a provision for estimated future warranty costs based on the historical relationship of warranty claims to sales at the time of shipment of products to customers . the company periodically reviews the adequacy of its product warranties and adjusts , if necessary , the warranty percentage and accrued warranty reserve for actual experience . 22 service revenue primarily consists of preventative maintenance and monitoring services , as well as the provision of after-market support related to equipment sales and project commissioning service revenue . revenues from these services are recognized when the service is performed and the customer has accepted the work . inventories . we value inventories at the lower of cost or market . if a write down to the current market value is necessary , the market value can not be greater than the net realizable value , which is defined as selling price less costs to complete and dispose , and can not be lower than the net realizable value less a normal profit margin . we also continually evaluate the composition of our inventory and identify obsolete , slow-moving and excess inventories . inventory items identified as obsolete , slow-moving or excess are evaluated to determine if reserves are required . if we were not able to achieve our expectations of the net realizable value of the inventory at current market value , we would have to adjust our reserves accordingly . we attempt to accurately estimate future product demand to properly adjust inventory levels for our standard products . however , significant unanticipated changes in demand could have a significant impact on the value of inventory and of operating results . impairment of long-lived assets . we review long-lived assets for impairment including intangible assets with determinable useful lives whenever events or changes in circumstances indicate that the carrying value of the corresponding asset group may not be realizable . if an evaluation is required , the estimated future undiscounted cash flows associated with the asset group are compared to the asset group 's carrying amount to determine if an impairment of such asset is necessary . this requires us to make long-term forecasts of the future revenues and costs related to the assets groups subject to review . forecasts require assumptions about demand for our products and future market conditions . estimating future cash flows requires significant judgment , and our projections may vary from cash flows eventually realized . future events and unanticipated changes to assumptions could require a provision for impairment in a future period . the effect of any impairment would be reflected in operating income in the consolidated statements of operations . in addition , we estimate the useful lives of our long-lived assets and other intangibles and periodically review these estimates to determine whether these lives are appropriate . goodwill and indefinite lived intangible assets . goodwill and other intangible assets with indefinite useful lives are not amortized , but are evaluated for impairment annually , or immediately if conditions indicate that impairment could exist . the evaluation requires an impairment test to identify potential goodwill impairment and measure the amount of a goodwill impairment loss . the test compares the fair value of a reporting unit with its carrying amount , including goodwill . if the carrying amount of a reporting unit exceeds its fair value , the company measures the amount of the impairment loss . the goodwill impairment testing involves significant estimates . story_separator_special_tag we are required to meet certain minimum working capital ratios , minimum ebitda levels and effective tangible net worth levels for each fiscal quarter , as set forth in the 2017 cad arca amendment and the 2018 cad arca amendment . pursuant to the 2018 cad arca amendment , bmo waived defaults on all financial covenants existing as of december 31 , 2017 , for which we were not in compliance . as of december 31 , 2017 , we had approximately $ 3.5 million in u.s. dollar equivalents outstanding under our canadian credit facilities . our borrowings consisted of approximately $ 2.9 million outstanding under facility a , $ 0.1 million outstanding under facility b and $ 0.5 million outstanding under facility c. as of december 31 , 2016 , we had approximately $ 5.2 million in u.s. dollar equivalents outstanding under our canadian credit facilities . our borrowings consisted of approximately $ 4.4 million outstanding under facility a , $ 0.2 million outstanding under facility b and $ 0.6 million outstanding under facility c. united states credit facilities on december 2 , 2014 , our existing u.s. credit facilities ( the “ u.s . facilities ” ) were amended in order to provide a $ 5.0 million term loan facility that was used for the acquisition of titan . in april 2016 , we entered into an amended and restated credit agreement ( “ us arca ” ) with bmo with respect to our u.s. facilities that replaced and superseded all of our businesses ' prior financing arrangements with the bank . additionally , defaults relating to the breach of certain financial covenants under the prior financing arrangements with bmo existing as of december 31 , 2015 were waived by bmo . the us arca was further amended ( the “ 2017 us arca amendment ” ) on march 15 , 2017 , and again on march 28 , 2018 ( the “ 2018 us arca amendment ” ) . the 2018 us arca amendment extended the term of our us facilities to april 1 , 2020. our u.s. facilities , as amended and restated , provided for up to $ 19.1 million usd consisting of a $ 14.0 million usd facility a to finance ongoing operations , a $ 5.0 million usd facility b that financed the acquisition of titan , and a new $ 0.1 million revolving credit facility provided pursuant to a mastercard is to be used to pay for and temporarily finance our day-to-day business expenses and for no other purpose . the 2017 us arca amendment increased the usd facility a to $ 15.0 million , increasing the total amount of loans available under the u.s. facilities to $ 20.1 million usd . usd facility a , as amended and restated per 2017 us arca , bore interest , at our option , at bmo 's prime rate plus 1.00 % per annum on u.s. prime rate loans , or an adjusted libor rate plus 2.25 % per annum on eurodollar loans . pursuant to the 2018 us arca amendment , borrowings under facility a bears interest , at our option , at the bmo 's prime rate plus 0.75 % per annum on u.s. prime rate loans , or an adjusted libor rate plus 2.00 % per annum on eurodollar loans . usd facility a had a maturity date of july 31 , 2017 , which was extended to july 31 , 2018 pursuant to the 2017 us arca amendment . the 2018 us arca amendment extended the maturity of borrowings under facility a to april 1 , 2020. consistent with the terms of the historical usd facility a revolver , both a subjective acceleration clause and lockbox arrangement exist , as such the usd facility a revolver will continue to be presented as a current liability . the company believes , based upon historical experience , that it is probable that the usd facility a revolver will remain in place to fund operations through the maturity of the borrowings in april 2020 . 30 borrowings under usd facility b bear interest , at our option , at u.s. base rate plus 1.25 % per annum on u.s. prime loans , or an adjusted libor rate plus 2.50 % per annum on eurodollar loans . pursuant to the us arca , our quarterly principal payments were reduced to $ 31 usd for calendar year 2016 , with the original amortization schedule continuing to apply to all quarterly principal payments made after december 31 , 2016 , and the final maturity date of december 2 , 2019. the 2017 us arca amendment reduced the scheduled quarterly principal payments to $ 31 usd , commencing march 31 , 2017 , to continue until july 31 , 2018 , with a balloon payment of $ 4,438 on july 31 , 2018. pursuant to the 2018 us arca amendment , quarterly principal repayments beginning on july 31 , 2018 are increased to $ 100 and will continue until march 31 , 2020 with a balloon payment of $ 2,338 due on april 1 , 2020. the 2018 us arca amendment did not change the facility b interest rate . pursuant to the us arca , as amended by the 2017 us arca amendment and the 2018 us arca amendment , financial covenant testing is performed on our consolidated financial statements . we are required to meet certain minimum working capital ratios , minimum ebitda levels and effective tangible net worth levels for each fiscal quarter , as set forth in the 2017 us arca amendment and the 2018 us arca amendment . on march 6 , 2017 , we received a waiver from bmo on certain financial covenants existing as of december 31 , 2016. on march 28 , 2018 , pursuant to the 2018 us arca amendment , bmo waived defaults on all financial covenants existing as of december 31 , 2017 for which we

