Interim Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating activities:
Net loss	$ (3,189)	$ (2,388)
Adjustments to reconcile net loss to net cash flows from operating activities:
Depreciation and amortization	21	18
Non-cash and accrued interest	1
Share-based compensation expense	429	410
Changes in assets and liabilities:
Prepaid expenses and other assets	177	97
Other payables and accrued liabilities	(446)	(131)
Net cash flows from operating activities	(3,007)	(1,994)
Investing activities:
Purchases of property and equipment	(16)	(5)
Proceeds from sales of investment		270
Net cash flows from investing activities	(16)	265
Decrease in cash, cash equivalents and restricted cash	(3,023)	(1,729)
Cash, cash equivalents and restricted cash at beginning of period	13,580	19,734
Cash, cash equivalents and restricted cash at end of period	10,557	18,005
Supplemental disclosure of cash flow information:
Cash received from interest		2
Right-of-use asset and lease liability	$ 121