Condensed Consolidated Statements of Stockholders' Equity (Deficit) (Unaudited) - USD ($) $ in Thousands	Series E Convertible Preferred Stock [Member] Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2021		$ 108	$ 73,801	$ (76,938)	$ (3,029)
Temporary equity, beginning balance, shares at Dec. 31, 2021
Beginning balance, shares at Dec. 31, 2021		10,760,871
Preferred stock dividends			(18)		(18)
Temporary equity, preferred stock dividends	18
Issuance of common stock, net of offering costs		$ 8	5,052		5,060
Issuance of common stock, net of offering costs, shares		854,771
Share-based compensation expense			512		512
Net loss				(3,522)	(3,522)
Issuance of series E convertible preferred stock
Issuance of series E convertible preferred stock	4,000
Ending balance, value at Jun. 30, 2022		$ 116	79,347	(80,460)	(997)
Temporary equity, ending balance, shares at Jun. 30, 2022	4,018
Ending balance, shares at Jun. 30, 2022		11,615,642
Beginning balance, value at Mar. 31, 2022		$ 108	74,036	(79,115)	(4,971)
Temporary equity, beginning balance, shares at Mar. 31, 2022
Beginning balance, shares at Mar. 31, 2022		10,760,871
Preferred stock dividends			(18)		(18)
Temporary equity, preferred stock dividends	18
Issuance of common stock, net of offering costs		$ 8	5,052		5,060
Issuance of common stock, net of offering costs, shares		854,771
Share-based compensation expense			277		277
Net loss				(1,345)	(1,345)
Issuance of series E convertible preferred stock
Issuance of series E convertible preferred stock	4,000
Ending balance, value at Jun. 30, 2022		$ 116	79,347	(80,460)	(997)
Temporary equity, ending balance, shares at Jun. 30, 2022	4,018
Ending balance, shares at Jun. 30, 2022		11,615,642
Beginning balance, value at Dec. 31, 2022		$ 122	79,698	(83,011)	(3,191)
Temporary equity, beginning balance, shares at Dec. 31, 2022	4,180				4,180
Beginning balance, shares at Dec. 31, 2022		12,174,467
Preferred stock dividends			(77)		(77)
Temporary equity, preferred stock dividends	77
Conversion of preferred stock for common stock		$ 7	4,250		4,257
Temporary equity, conversion of preferred stock for common stock	(4,257)
Conversion of preferred stock for common stock, shares		706,626
Issuance of common stock, net of offering costs		$ 10	5,982		5,992
Issuance of common stock, net of offering costs, shares		1,000,967
Share-based compensation expense			2,319		2,319
Net loss				(5,504)	(5,504)
Ending balance, value at Jun. 30, 2023		$ 139	92,172	(88,515)	3,796
Temporary equity, ending balance, shares at Jun. 30, 2023
Ending balance, shares at Jun. 30, 2023		13,882,060
Beginning balance, value at Mar. 31, 2023		$ 127	84,712	(85,901)	(1,062)
Temporary equity, beginning balance, shares at Mar. 31, 2023	4,051
Beginning balance, shares at Mar. 31, 2023		12,716,534
Preferred stock dividends			3		3
Temporary equity, preferred stock dividends	(3)
Conversion of preferred stock for common stock		$ 7	4,041		4,048
Temporary equity, conversion of preferred stock for common stock	(4,048)
Conversion of preferred stock for common stock, shares		674,693
Issuance of common stock, net of offering costs		$ 5	2,937		2,942
Issuance of common stock, net of offering costs, shares		490,833
Share-based compensation expense			479		479
Net loss				(2,614)	(2,614)
Ending balance, value at Jun. 30, 2023		$ 139	$ 92,172	$ (88,515)	3,796
Temporary equity, ending balance, shares at Jun. 30, 2023
Ending balance, shares at Jun. 30, 2023		13,882,060