CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2019	$ 1,843	$ 136	$ (362)	$ (43)	$ 56,759	$ (54,777)	$ 3,556
Beginning Balance, shares at Dec. 31, 2019	949,377	13,552,236	10,000
Conversion of preferred stock to common	$ (1,843)	$ 10			1,833
Conversion of preferred stock to common, shares	(949,377)	1,067,443
Preferred stock dividends declared, net of waived penalties by shareholders					79		79
Public offering, net of fees		$ 25			18,146		18,171
Public offering, net of fees, shares		2,465,000
Share-based compensation expense					322		322
Exercise of stock options		$ 3			206		209
Exercise of stock options, shares		343,100
Net loss						(6,518)	(6,518)
Ending balance, value at Dec. 31, 2020		$ 174	$ (362)	(43)	77,187	(61,295)	15,661
Ending Balance, shares at Dec. 31, 2020		17,427,779	10,000
Public offering, net of fees		$ 13			5,543		5,556
Public offering, net of fees, shares		1,302,033
Restricted stock awarded		$ 1			(1)
Restricted stock awarded, shares		148,837
Share-based compensation expense					1,260		1,260
Exercise of stock options		$ 3			241		244
Exercise of stock options, shares		256,727
Net loss						(18,802)	(18,802)
Ending balance, value at Dec. 31, 2021		$ 191	$ (362)	$ (43)	$ 84,230	$ (80,097)	$ 3,919
Ending Balance, shares at Dec. 31, 2021		19,135,376	10,000