CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Balance at Dec. 31, 2020	$ 45,670	$ 214	$ 96,104	$ (50,648)
Balance (in shares) at Dec. 31, 2020		21,379,000
Issuance of unrestricted stock		$ 1	(1)
Issuance of unrestricted stock (in shares)		131,000
Shares surrendered by employees to pay taxes related to unrestricted stock	(54)		(54)
Shares surrendered by employees to pay taxes related to unrestricted stock (in shares)		(16,000)
Stock-based compensation expense	197		197
Net loss	(1,448)			(1,448)
Balance at Mar. 31, 2021	44,365	$ 215	96,246	(52,096)
Balance (in shares) at Mar. 31, 2021		21,494,000
Balance at Dec. 31, 2021	$ 41,522	$ 216	97,778	(56,472)
Balance (in shares) at Dec. 31, 2021	21,613,982	21,614,000
Issuance of unrestricted stock (in shares)		28,000
Stock-based compensation expense	$ 430		430
Net loss	(1,279)			(1,279)
Balance at Mar. 31, 2022	$ 40,673	$ 216	$ 98,208	$ (57,751)
Balance (in shares) at Mar. 31, 2022	21,642,260	21,642,000