CONDENSED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Ordinary Shares	Additional Paid-in Capital	Treasury Shares	Accumulated deficit	Total
Balance at Dec. 31, 2021	$ 4,661	$ 278,903	$ 0	$ (194,181)	$ 89,383
Balance, shares at Dec. 31, 2021	62,480,163
Share-based compensation to employees and non-employees	$ 0	326	0	0	326
Issuance of ordinary shares upon vesting of RSUs by employees and non-employees	$ 14	(14)	0	0	0
Issuance of ordinary shares upon vesting of RSUs by employees and non-employees, Shares	198,145
Net loss	$ 0	0	0	(8,796)	(8,796)
Balance at Jun. 30, 2022	$ 4,675	279,215	0	(202,977)	80,913
Balance, shares at Jun. 30, 2022	62,678,308
Balance at Mar. 31, 2022	$ 4,663	279,054	0	(198,531)	85,186
Balance, shares at Mar. 31, 2022	62,508,517
Share-based compensation to employees and non-employees	$ 0	173	0	0	173
Issuance of ordinary shares upon vesting of RSUs by employees and non-employees	$ 12	(12)	0	0	0
Issuance of ordinary shares upon vesting of RSUs by employees and non-employees, Shares	169,791
Net loss	$ 0	0		(4,446)	(4,446)
Balance at Jun. 30, 2022	$ 4,675	279,215	0	(202,977)	80,913
Balance, shares at Jun. 30, 2022	62,678,308
Balance at Dec. 31, 2022	$ 4,489	279,857	(2,431)	(213,750)	68,165
Balance, shares at Dec. 31, 2022	60,090,298
Treasury shares at cost	$ (78)	0	(772)	0	(850)
Treasury shares at cost, Shares	(1,089,399)
Share-based compensation to employees and non-employees	$ 0	622	0	0	622
Issuance of ordinary shares upon vesting of RSUs by employees and non-employees	$ 24	(24)	0	0	0
Issuance of ordinary shares upon vesting of RSUs by employees and non-employees, Shares	345,240
Net loss	$ 0	0	0	(8,963)	(8,963)
Balance at Jun. 30, 2023	$ 4,435	280,455	(3,203)	(222,713)	58,974
Balance, shares at Jun. 30, 2023	59,346,139
Balance at Mar. 31, 2023	$ 4,445	280,152	(3,007)	(218,071)	63,519
Balance, shares at Mar. 31, 2023	59,482,004
Treasury shares at cost	$ (25)	0	(196)	0	(221)
Treasury shares at cost, Shares	(359,049)
Share-based compensation to employees and non-employees	$ 0	318	0	0	318
Issuance of ordinary shares upon vesting of RSUs by employees and non-employees	$ 15	(15)	0	0	0
Issuance of ordinary shares upon vesting of RSUs by employees and non-employees, Shares	223,184
Net loss				(4,642)	(4,642)
Balance at Jun. 30, 2023	$ 4,435	$ 280,455	$ (3,203)	$ (222,713)	$ 58,974
Balance, shares at Jun. 30, 2023	59,346,139