Condensed Statements of Convertible Preferred Stock and Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance at Dec. 31, 2022		$ 1	$ 37,318	$ 17	$ (31,173)	$ 6,163
Balance, shares at Dec. 31, 2022		9,097,701
Issuance of common stock upon exercise of stock options			6			6
Issuance of common stock upon exercise of stock options, shares		3,547
Stock-based compensation expense			244			244
Net loss					(3,257)	(3,257)
Issuance of restricted stock awards			117			117
Issuance of restricted stock awards, shares		30,000
Other comprehensive loss				(17)		(17)
Balance at Mar. 31, 2023		$ 1	37,685		(34,430)	3,256
Balance, shares at Mar. 31, 2023		9,131,248
Balance at Dec. 31, 2023		$ 1	38,404		(41,405)	(3,000)
Balance, shares at Dec. 31, 2023		10,693,580
Issuance of common stock upon exercise of stock options			42			$ 42
Issuance of common stock upon exercise of stock options, shares		38,981				38,981
Proceeds from private placement offering, net of offering costs		$ 1	5,377			$ 5,378
Proceeds from private placement offering, net of offering costs, shares		6,133,414
Stock-based compensation expense			423			423
Net loss					(1,076)	(1,076)
Balance at Mar. 31, 2024		$ 2	$ 44,246		$ (42,481)	$ 1,767
Balance, shares at Mar. 31, 2024		16,865,975