Interim Condensed Consolidated Statement of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net loss for the period	$ (12,499)	$ (5,328)
Adjustments:
Depreciation and amortization	3,402	3,132
Stock-based compensation	1,094	461
Foreign exchange (gain) loss	172	(2,214)
Accretion of convertible debentures	53
Deferred income tax expense (recovery)	39	(745)
Changes in operating assets and liabilities:
Trade and other receivables	(243)	1,436
Inventory	197	35
Prepaid and other current assets	(948)	(724)
Trade accounts payable and accrued liabilities	(5,614)	4,109
Other liabilities	507	(1,979)
Lease liabilities	139	(27)
Customer deposits and deferred revenue	1,607	1,084
Net cash flows used in operating activities	(12,094)	(760)
Cash flows from investing activities:
Purchase of property, plant and equipment, net of accounts payable changes	(2,908)	(1,560)
Capitalized software development expenditures and other asset expenditures	(705)	(970)
Recovery of software development expenditures	24	75
Net cash flows used in investing activities	(3,589)	(2,455)
Cash flows from financing activities:
Proceeds received on long-term debt	29,545
Repayment of long-term debt	(208)
Net cash flows provided by financing activities	29,337
Effect of foreign exchange on cash, cash equivalents and restricted cash	303	(499)
Net increase (decrease) in cash, cash equivalents and restricted cash	13,957	(3,714)
Cash, cash equivalents and restricted cash, beginning of period	45,846	47,174
Cash, cash equivalents and restricted cash, end of period	59,803	43,460
Supplemental disclosure of cash flow information:
Interest paid	$ (62)	$ (35)