Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional paid-in capital	Retained earnings (Accumulated deficit)
Beginning balance (in shares) at Dec. 31, 2020		7,926,137
Beginning balance at Dec. 31, 2020	$ 53,732	$ 1	$ 57,612	$ (3,881)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	677		677
Shares issued related to vested restricted stock units (in shares)		89,446
Shares issued related to vested restricted stock units	0
Tax withholding related to vested restricted stock units	(183)		(183)
Shares issued related to employee stock purchase plan (in shares)		8,928
Shares issued related to employee stock purchase plan	92		92
Shares issued related to exercise of warrants (in shares)		172,869
Shares issued related to the exercise of warrants	1,989		1,989
Shares issued related to sale of common stock (in shares)		2,051,025
Shares issued related to sale of common stock	22,773		22,773
Net (loss) income	(2,282)			(2,282)
Ending balance (in shares) at Mar. 31, 2021		10,248,405
Ending balance at Mar. 31, 2021	76,798	$ 1	82,960	(6,163)
Beginning balance (in shares) at Dec. 31, 2020		7,926,137
Beginning balance at Dec. 31, 2020	53,732	$ 1	57,612	(3,881)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(1,550)
Ending balance (in shares) at Jun. 30, 2021		10,251,696
Ending balance at Jun. 30, 2021	78,159	$ 1	83,589	(5,431)
Beginning balance (in shares) at Mar. 31, 2021		10,248,405
Beginning balance at Mar. 31, 2021	76,798	$ 1	82,960	(6,163)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	636		636
Shares issued related to vested restricted stock units (in shares)		3,291
Shares issued related to vested restricted stock units	0
Tax withholding related to vested restricted stock units	(7)		(7)
Net (loss) income	732			732
Ending balance (in shares) at Jun. 30, 2021		10,251,696
Ending balance at Jun. 30, 2021	78,159	$ 1	83,589	(5,431)
Beginning balance (in shares) at Dec. 31, 2021		10,304,242
Beginning balance at Dec. 31, 2021	87,838	$ 1	85,004	2,833
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	599		599
Shares issued related to vested restricted stock units (in shares)		105,928
Shares issued related to vested restricted stock units	0
Tax withholding related to vested restricted stock units	(148)		(148)
Shares issued related to employee stock purchase plan (in shares)		12,898
Shares issued related to employee stock purchase plan	98		98
Net (loss) income	(1,516)			(1,516)
Ending balance (in shares) at Mar. 31, 2022		10,423,068
Ending balance at Mar. 31, 2022	86,871	$ 1	85,553	1,317
Beginning balance (in shares) at Dec. 31, 2021		10,304,242
Beginning balance at Dec. 31, 2021	87,838	$ 1	85,004	2,833
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income	(650)
Ending balance (in shares) at Jun. 30, 2022		10,423,068
Ending balance at Jun. 30, 2022	88,312	$ 1	86,128	2,183
Beginning balance (in shares) at Mar. 31, 2022		10,423,068
Beginning balance at Mar. 31, 2022	86,871	$ 1	85,553	1,317
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	575		575
Net (loss) income	866			866
Ending balance (in shares) at Jun. 30, 2022		10,423,068
Ending balance at Jun. 30, 2022	$ 88,312	$ 1	$ 86,128	$ 2,183