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	2,045		2,045
Issuance of shares for vested restricted stock grants (in shares)		270,143
Net loss	(3,290)			(3,290)
Ending balance (in shares) at Sep. 30, 2022		18,930,512
Ending balance at Sep. 30, 2022	18,332	$ 19	148,500	(130,187)
Beginning balance (in shares) at Jun. 30, 2022		18,875,580
Beginning balance at Jun. 30, 2022	18,360	$ 19	147,804	(129,463)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	696		696
Issuance of shares for vested restricted stock grants (in shares)		54,932
Net loss	(724)			(724)
Ending balance (in shares) at Sep. 30, 2022		18,930,512
Ending balance at Sep. 30, 2022	18,332	$ 19	148,500	(130,187)
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	1,361		1,361
Issuance of common stock for vested restricted stock units and earned performance stock units (in shares)		366,901
Shares forfeited in exchange for withholding taxes (in shares)		(24,720)
Shares forfeited in exchange for withholding taxes	(57)		(57)
Net loss	(2,737)			(2,737)
Ending balance (in shares) at Sep. 30, 2023		19,299,547
Ending balance at Sep. 30, 2023	17,071	$ 19	150,537	(133,485)
Beginning balance (in shares) at Jun. 30, 2023		19,251,920
Beginning balance at Jun. 30, 2023	17,337	$ 19	150,159	(132,841)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	381		381
Issuance of shares for vested restricted stock grants (in shares)		47,627
Shares forfeited in exchange for withholding taxes	(3)		(3)
Net loss	(644)			(644)
Ending balance (in shares) at Sep. 30, 2023		19,299,547
Ending balance at Sep. 30, 2023	$ 17,071	$ 19	$ 150,537	$ (133,485)