Interim Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating activities:
Net loss	$ (7,586)	$ (10,170)
Adjustments to reconcile net loss to net cash flows used in operating activities:
Depreciation and amortization	71	69
Interest income and unrealized gains from marketable securities, net	(105)
Share-based compensation expense	1,097	1,322
Changes in assets and liabilities:
Prepaid expenses and other assets	549	350
Other payables and accrued liabilities	(738)	(657)
Net cash flows used in operating activities	(6,712)	(9,086)
Investing activities:
Purchases of property and equipment	(38)	(83)
Sale of property and equipment	2
Purchases of marketable securities	(8,379)
Proceeds from sales of a marketable securities	2,039
Proceeds from maturities of marketable securities	5,389
Short term deposit	3
Net cash flows used in investing activities	(984)	(83)
Financing activities:
Issuance of common stock and warrants, net of issuance costs	6,558
Net cash flows provided by financing activities	6,558
Decrease in cash, cash equivalents and restricted cash	(1,138)	(9,169)
Cash, cash equivalents and restricted cash at beginning of period	2,519	13,580
Cash, cash equivalents and restricted cash at end of period	1,381	4,411
Supplemental disclosure of cash flow information:
Cash received from interest	100	15
Right-of-use asset and lease liability	$ 20	$ 147