INTERIM CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net loss	$ (4,488)	$ (5,634)	$ (19,996)	$ (15,561)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	56	37	155	114
Shares and options granted to service providers				25
Stock-based compensation related to options granted to employees and directors	1,017	217	2,198	582
Changes in operating lease liability	(11)	49	(61)	187
Decrease (increase) in other accounts receivable and prepaid expenses	(1,095)	290	1,267	938
Increase (decrease) in trade payables	(1,321)	379	(11,394)	4,596
Increase (decrease) in other accounts payable and accrued expenses	(1,082)	1,036	216	1,150
Total net cash used in operating activities	(6,924)	(3,626)	(27,615)	(7,969)
Cash flows from investing activities:
Purchase of property and equipment	(88)	(102)	(145)	(127)
Changes in short-term deposit	2	1,541	(4,005)	6,088
Total net cash provided by (used in) investing activities	(86)	1,439	(4,150)	5,961
Cash flows from financing activities:
Proceeds from exercise of options	20	30	52	35
Proceeds from issuance of shares in at-the-market (ATM) offering (Note 7)	13,307		39,690
Proceeds from exercise of warrants	6,300		6,300
Exercise and reissuance of warrants		3,126		3,126
Proceeds from issuance of shares and warrants in Registered Direct Offering (Note 7)			9,957
Total net cash provided by financing activities	19,627	3,156	55,999	3,161
Increase in cash and cash equivalents	12,617	969	24,234	1,153
Cash and cash equivalents at the beginning of the period	12,153	1,126	536	942
Cash and cash equivalents at end of the period	$ 24,770	$ 2,095	$ 24,770	$ 2,095