Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Funds (used) provided - Operating activities
Net loss	$ (10,690)	$ (9,312)
Depreciation of tangible assets	777	791
Stock-based compensation	113	107
Accretion expense	271	477
DSU expense	(106)	224
Interest paid by issuance of common shares	171	1
Gain on debt extinguishment	0	(151)
Lease non-cash expense	2	7
Deferred income tax	0	(6)
Total Adjustment	(9,462)	(7,862)
Changes in non-cash items related to operations:
Accounts receivable	(29)	(420)
Prepaid expenses	(32)	57
Investment tax credits receivable	277	199
Contract asset	0	354
Inventory	0	182
Security deposits	(9)	206
Accounts payable and accrued liabilities	(72)	88
Deferred revenues	(189)	23
Net change in non-cash items related to operations	(54)	689
Net cash used in operating activities	(9,516)	(7,173)
Financing activities
Repayment of long-term debt	0	(737)
Issuance of loan	3,000	2,500
Finance lease payments	(35)	(29)
Proceeds from issuance of shares	0	12,346
Transaction costs of share issuance	0	(422)
Net proceeds from convertible notes	0	1,897
Transaction costs of convertible notes	0	(34)
Transaction costs of debt extinguishment	0	(29)
Net cash provided by financing activities	2,965	15,492
Investing activities
Additions to leasehold improvements and equipment	(271)	(108)
Acquisitions of short-term investments	(5,739)	(6,000)
Redemptions of short-term investments	9,519	1,034
Net cash provided by (used in) investing activities	3,509	(5,074)
(Decrease) increase in cash	(3,042)	3,245
Effect of foreign exchange on cash	307	(505)
Cash
Beginning of year	3,945	1,205
End of year	$ 1,210	$ 3,945