Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income [Member]
Beginning balance at Dec. 31, 2022	$ 39,131	$ 40	$ 172,575	$ (133,427)	$ (57)
Beginning balance, shares at Dec. 31, 2022		4,025,489
Repurchase and retirement of common stock		(908,644)
Repurchase and retirement of common stock, amount	(3,000)	$ (9)	(2,991)	0
Issuance of common stock, net of issuance costs	16,567		16,567	0
Stock-based compensation expense	224		224	0
Unrealized gain on available-for-sale securities	136			0	136
Net loss	(6,034)			(6,034)	0
Ending balance at Mar. 31, 2023	47,024	$ 31	186,375	(139,461)	$ 79
Ending balance, shares at Mar. 31, 2023		3,116,845
Beginning balance at Dec. 31, 2023	31,791	$ 31	187,122	(155,362)
Beginning balance, shares at Dec. 31, 2023		3,116,729
Repurchase and retirement of common stock, amount	0
Stock-based compensation expense	260		260
Net loss	(8,897)			(8,897)
Ending balance at Mar. 31, 2024	$ 23,154	$ 31	$ 187,382	$ (164,259)
Ending balance, shares at Mar. 31, 2024		3,116,729