Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating activities
Net loss	$ (2,924)	$ (2,686)
Depreciation of tangible assets	192	195
Stock-based compensation	11	32
Accretion expense	48	91
DSU expense	144	68
Lease non-cash expense	1	1
Total Adjustment	(2,528)	(2,299)
Changes in non-cash items related to operations:
Accounts receivable	119	(74)
Prepaid expenses	(75)	(27)
Investment tax credits receivable	(37)	211
Inventory	(8)	(26)
Accounts payable and accrued liabilities	267	(21)
Deferred revenues	0	(51)
Net change in non-cash items related to operations	266	12
Net cash used in operating activities	(2,262)	(2,287)
Financing activities
Finance lease payments	(9)	(9)
Issuance of loan	3,000	3,000
Net proceeds from convertible notes	697	0
Transaction costs of convertible notes	(40)	0
Net cash provided by financing activities	3,648	2,991
Investing activities
Additions to leasehold improvements and equipment	(74)	(64)
Redemption of short-term investments	0	5,719
Acquisition of short-term investments	0	(3,700)
Net cash (used in) provided by investing activities	(74)	1,955
Increase in cash	1,312	2,659
Effect of foreign exchange on cash	(2)	10
Cash
Beginning of period	1,210	3,945
End of period	$ 2,520	$ 6,614