CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2021	$ 41,522	$ 216	$ 97,778	$ (56,472)
Balance (in shares) at Dec. 31, 2021		21,614,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of unrestricted stock	2	$ 1	1
Issuance of unrestricted stock (in shares)		118,000
Shares surrendered by employees to pay taxes related to unrestricted stock	(26)		(26)
Shares surrendered by employees to pay taxes related to unrestricted stock (in shares)		(10,000)
Issuance of common stock under employee stock purchase plan	152	$ 1	151
Issuance of common stock under employee stock purchase plan (in shares)		76,000
Stock-based compensation expense	1,707		1,707
Repurchase of common stock	(1,312)	$ (7)	(1,305)
Repurchase of common stock (in shares)		(705,000)
Other comprehensive income (loss)	(110)				$ (110)
Net loss	(1,726)			(1,726)
Balance at Dec. 31, 2022	$ 40,209	$ 211	98,306	(58,198)	(110)
Balance (in shares) at Dec. 31, 2022	21,093,447	21,093,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of unrestricted stock	$ (1)	$ 2	(3)
Issuance of unrestricted stock (in shares)		164,000
Shares surrendered by employees to pay taxes related to unrestricted stock	(16)		(16)
Shares surrendered by employees to pay taxes related to unrestricted stock (in shares)		(9,000)
Issuance of common stock under employee stock purchase plan	96	$ 1	95
Issuance of common stock under employee stock purchase plan (in shares)		70,000
Stock-based compensation expense	1,525		1,525
Repurchase of common stock	(506)	$ (4)	(502)
Repurchase of common stock (in shares)		(300,000)
Other comprehensive income (loss)	305				305
Net loss	(7,314)			(7,314)
Balance at Dec. 31, 2023	$ 34,298	$ 210	$ 99,405	$ (65,512)	$ 195
Balance (in shares) at Dec. 31, 2023	21,017,892	21,018,000