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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
OPERATING ACTIVITIES:    
Net loss $ (30,230) $ (34,377)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 6,040 6,638
Amortization of intangible assets 935 502
Non-cash interest expense 1,356 24
Loss (recovery) on lease due to restructuring (86) 179
Pension and defined benefit plan cost 736 520
Stock-based compensation expense 7,365 6,547
Gain on sale of property and equipment (4) (20)
Provision for (recovery of) losses on accounts receivable (32) 4
Provision for losses on inventory 1,395 1,669
Provision for warranties 165 605
Changes in operating assets and liabilities:    
Trade and other accounts receivable 1,734 (3,662)
Inventories (9,492) 3,626
Prepaid expenses and other assets (1,129) 145
Pension asset (442) (502)
Accounts payable and accrued liabilities (13,291) 7,293
Deferred revenue and customer deposits (2,161) 1,817
Accrued employee compensation (1,368) 1,190
Deferred tax liability (789) (981)
Defined benefit plan and other long-term liabilities (748) 7
Net cash used in operating activities (40,046) (8,776)
INVESTING ACTIVITIES:    
Purchases of property and equipment (9,708) (3,315)
Proceeds from sale of property and equipment 8 20
Cash used in acquisition, net of cash acquired 0 (97)
Proceeds from sale of product line 0 1,500
Net cash used in investing activities (9,700) (1,892)
FINANCING ACTIVITIES:    
Repayments of line of credit and other borrowings (15,025) (24)
Line of credit borrowings 15,000 0
Proceeds from convertible debt, net of discount and issuance costs 0 37,333
Proceeds from sale of common stock, net of offering costs 22,974 0
Proceeds from issuance of common stock under equity compensation plans 229 193
Net cash provided by financing activities 23,178 37,502
Effect of exchange rate changes on cash and cash equivalents 7 659
Increase (decrease) in cash and cash equivalents (26,561) 27,493
Cash and cash equivalents, beginning of period 50,122 25,359
Cash and cash equivalents, end of period $ 23,561 $ 52,852