CONDENSED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021		18,660,369
Beginning balance at Dec. 31, 2021	$ 19,577	$ 19	$ 146,455	$ (126,897)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	1,349		1,349
Issuance of shares for vested restricted stock grants (in shares)		215,211
Net loss	(2,566)			(2,566)
Ending balance (in shares) at Jun. 30, 2022		18,875,580
Ending balance at Jun. 30, 2022	18,360	$ 19	147,804	(129,463)
Beginning balance (in shares) at Mar. 31, 2022		18,674,980
Beginning balance at Mar. 31, 2022	18,938	$ 19	147,284	(128,365)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	520		520
Issuance of shares for vested restricted stock grants (in shares)		200,600
Net loss	(1,098)			(1,098)
Ending balance (in shares) at Jun. 30, 2022		18,875,580
Ending balance at Jun. 30, 2022	18,360	$ 19	147,804	(129,463)
Beginning balance (in shares) at Dec. 31, 2022		18,957,366
Beginning balance at Dec. 31, 2022	18,504	$ 19	149,233	(130,748)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	980		980
Issuance of common stock for vested restricted stock units and earned performance stock units (in shares)		319,274
Shares forfeited in exchange for withholding taxes (in shares)		(24,720)
Shares forfeited in exchange for withholding taxes	(54)		(54)
Net loss	(2,093)			(2,093)
Ending balance (in shares) at Jun. 30, 2023		19,251,920
Ending balance at Jun. 30, 2023	17,337	$ 19	150,159	(132,841)
Beginning balance (in shares) at Mar. 31, 2023		19,215,863
Beginning balance at Mar. 31, 2023	17,830	$ 19	149,875	(132,064)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	338		338
Issuance of shares for vested restricted stock grants (in shares)		60,777
Shares forfeited in exchange for withholding taxes (in shares)		(24,720)
Shares forfeited in exchange for withholding taxes	(54)		(54)
Net loss	(777)			(777)
Ending balance (in shares) at Jun. 30, 2023		19,251,920
Ending balance at Jun. 30, 2023	$ 17,337	$ 19	$ 150,159	$ (132,841)