Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022	Jun. 30, 2021
Operating activities
Net loss	$ (3,303)	$ (6,178)	$ (7,245)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation		418	367
Non-cash lease expense		8	12
Depreciation		17	24
Loss on sale of property and equipment	75	75
Change in assets and liabilities, net of the effects of the asset acquisition:
Prepaid expenses and other assets		(997)	(361)
Accounts payable		(165)	(2,228)
Accrued and other liabilities		(724)	(297)
Net cash used in operating activities		(7,546)	(9,728)
Investing activities
Purchases of property and equipment			(3)
Sale of property and equipment		8
Net cash provided by (used in) investing activities		8	(3)
Financing activities
Proceeds from equity offering			10,000
Issuance costs			(908)
Exercise of stock options			72
Net cash provided by financing activities			9,164
Net (decrease) increase in cash		(7,538)	(567)
Net foreign exchange difference			(9)
Cash at beginning of period		16,387	10,089
Cash at end of period	$ 8,849	8,849	$ 9,513
Supplemental non-cash investing and financing transactions:
Modification of right-of-use asset and associated lease liability		$ 62