Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Total
Beginning balance at Dec. 31, 2020	$ 34	$ 244,831	$ (218,973)	$ 25,892
Beginning balance (in shares) at Dec. 31, 2020	33,801,045
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	662	0	662
Issuance of restricted stock	$ 0	0	0	0
Issuance of restricted stock (in shares)	16,260
Net loss	$ 0	0	(2,418)	(2,418)
Ending balance at Mar. 31, 2021	$ 34	245,493	(221,391)	24,136
Ending balance (in shares) at Mar. 31, 2021	33,817,305
Beginning balance at Dec. 31, 2021	$ 34	247,059	(221,679)	25,414
Beginning balance (in shares) at Dec. 31, 2021	34,364,679
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	368	0	368
Issuance of common stock for acquisition	$ 1	499	0	500
Issuance of common stock for acquisition (in shares)	358,367
Net loss	$ 0	0	(2,502)	(2,502)
Ending balance at Mar. 31, 2022	$ 35	$ 247,926	$ (224,181)	$ 23,780
Ending balance (in shares) at Mar. 31, 2022	34,723,046