CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Treasury Stock, Common [Member]	Accumulated Other Comprehensive Gain (Loss) [Member]
Beginning Balance at Dec. 31, 2021	$ 32,605	$ 3	$ 171,597	$ (138,966)		$ (29)
Beginning Balance (shares) at Dec. 31, 2021		27,624,197			105,144
Stock-based compensation	1,316		1,316
Net loss	(8,470)			(8,470)
Unrealized gain (loss) on marketable securities	(33)					(33)
Ending Balance at Mar. 31, 2022	25,418	$ 3	172,913	(147,436)		(62)
Ending Balance (shares) at Mar. 31, 2022		27,624,197			105,144
Beginning Balance at Dec. 31, 2021	32,605	$ 3	171,597	(138,966)		(29)
Beginning Balance (shares) at Dec. 31, 2021		27,624,197			105,144
Net loss	(18,638)
Unrealized gain (loss) on marketable securities	(35)
Ending Balance at Jun. 30, 2022	16,333	$ 3	173,998	(157,604)		(64)
Ending Balance (shares) at Jun. 30, 2022		27,624,197			105,144
Beginning Balance at Mar. 31, 2022	25,418	$ 3	172,913	(147,436)		(62)
Beginning Balance (shares) at Mar. 31, 2022		27,624,197			105,144
Stock-based compensation	1,085		1,085
Net loss	(10,168)			(10,168)
Unrealized gain (loss) on marketable securities	(2)					(2)
Ending Balance at Jun. 30, 2022	16,333	$ 3	173,998	(157,604)		$ (64)
Ending Balance (shares) at Jun. 30, 2022		27,624,197			105,144
Beginning Balance at Dec. 31, 2022	40,033	$ 4	203,482	(163,453)
Beginning Balance (shares) at Dec. 31, 2022		41,199,197			105,144
Stock-based compensation	1,094		1,094
Issuance of common stock and pre-funded warrants, for the purchase of common stock, net of issuance costs, Shares		750,000
Issuance of common stock and pre-funded warrants, for the purchase of common stock, net of issuance costs	30,301		30,301
Exercise of stock options	7		7
Exercise of stock options (shares)		8,000
Net loss	(6,589)			(6,589)
Ending Balance at Mar. 31, 2023	64,846	$ 4	234,884	(170,042)
Ending Balance (shares) at Mar. 31, 2023		41,957,197			105,144
Beginning Balance at Dec. 31, 2022	$ 40,033	$ 4	203,482	(163,453)
Beginning Balance (shares) at Dec. 31, 2022		41,199,197			105,144
Exercise of stock options (shares)	8,000
Net loss	$ (17,579)
Unrealized gain (loss) on marketable securities	0
Ending Balance at Jun. 30, 2023	55,400	$ 4	236,428	(181,032)
Ending Balance (shares) at Jun. 30, 2023		41,957,197			105,144
Beginning Balance at Mar. 31, 2023	64,846	$ 4	234,884	(170,042)
Beginning Balance (shares) at Mar. 31, 2023		41,957,197			105,144
Stock-based compensation	1,544		1,544
Net loss	(10,990)			(10,990)
Unrealized gain (loss) on marketable securities	0
Ending Balance at Jun. 30, 2023	$ 55,400	$ 4	$ 236,428	$ (181,032)
Ending Balance (shares) at Jun. 30, 2023		41,957,197			105,144