Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Funds (used) provided - Operating activities
Net loss	$ (2,686)	$ (2,261)
Depreciation of tangible assets	195	192
Stock-based compensation	32	31
Accretion expense	91	138
DSU expense	68	115
Lease non-cash expense	1	1
Total Adjustment	(2,299)	(1,784)
Changes in non-cash items related to operations:
Accounts receivable	(74)	(116)
Prepaid expenses	(27)	(4)
Investment tax credits receivable	211	(72)
Contract asset	0	354
Inventory	(26)	126
Security deposits	0	206
Accounts payable and accrued liabilities	(21)	(157)
Deferred revenues	(51)	(22)
Net change in non-cash items related to operations	12	315
Net cash used in operating activities	(2,287)	(1,469)
Financing activities
Finance lease payments	(9)	(6)
Issuance of loan	3,000	2,000
Repayment of long-term debt	0	(737)
Net cash provided by financing activities	2,991	1,257
Investing activities
Additions to leasehold improvements and equipment	(64)	(12)
Redemption of short-term investments	5,719	627
Acquisition of short-term investments	(3,700)	0
Net cash provided by investing activities	1,955	615
Increase in cash	2,659	403
Effect of foreign exchange on cash	10	(36)
Cash
Beginning of period	3,945	1,205
End of period	$ 6,614	$ 1,572