Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ (1,057)	$ (1,635)
Changes in operating assets and liabilities:
Other assets	40	32
Accounts payable and accrued liabilities	135	225
Net cash provided (used) by operating activities	(882)	(1,378)
Net change in cash and cash equivalents	(882)	(1,378)
Cash and cash equivalents at beginning of period	3,003	7,925
Cash and cash equivalents at end of period	2,121	6,547
Supplemental cash flow disclosure:
Income taxes refunded (paid)	$ 0	$ 0