Condensed Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands	Common Stock	Capital deficiency	Accumulated earnings	Total
Beginning balance at Dec. 31, 2022	$ 11	$ (108,379)	$ 26,291	$ (82,077)
Beginning balance (in shares) at Dec. 31, 2022	11,390,355
Shares issued under stock-based compensation plans		(327)		(327)
Shares issued under stock-based compensation plans (in shares)	63,194
Stock-based compensation		4,431		4,431
Components of comprehensive income:
Net income			21,253	21,253
Ending balance at Sep. 30, 2023	$ 11	(104,275)	47,544	(56,720)
Ending balance (in shares) at Sep. 30, 2023	11,453,549
Beginning balance at Jun. 30, 2023	$ 11	(106,668)	43,687	(62,970)
Beginning balance (in shares) at Jun. 30, 2023	11,430,245
Shares issued under stock-based compensation plans		(207)		(207)
Shares issued under stock-based compensation plans (in shares)	23,304
Stock-based compensation		2,600		2,600
Components of comprehensive income:
Net income			3,857	3,857
Ending balance at Sep. 30, 2023	$ 11	(104,275)	47,544	(56,720)
Ending balance (in shares) at Sep. 30, 2023	11,453,549
Beginning balance at Dec. 31, 2023	$ 11	(102,223)	50,276	$ (51,936)
Beginning balance (in shares) at Dec. 31, 2023	11,446,155			11,446,155
Shares issued under stock-based compensation plans		(2,595)		$ (2,595)
Shares issued under stock-based compensation plans (in shares)	186,547
Stock-based compensation		6,936		6,936
Repurchase and retirement of common shares		(7,945)		$ (7,945)
Repurchase and retirement of common shares (in shares)	(473,284)			(473,284)
Components of comprehensive income:
Net income			12,749	$ 12,749
Ending balance at Sep. 30, 2024	$ 11	(105,827)	63,025	$ (42,791)
Ending balance (in shares) at Sep. 30, 2024	11,159,418			11,159,418
Beginning balance at Jun. 30, 2024	$ 11	(106,300)	61,732	$ (44,557)
Beginning balance (in shares) at Jun. 30, 2024	11,186,596
Shares issued under stock-based compensation plans		(1,309)		(1,309)
Shares issued under stock-based compensation plans (in shares)	93,356
Stock-based compensation		1,782		1,782
Repurchase and retirement of common shares (in shares)	(120,534)
Components of comprehensive income:
Net income			1,293	1,293
Ending balance at Sep. 30, 2024	$ 11	$ (105,827)	$ 63,025	$ (42,791)
Ending balance (in shares) at Sep. 30, 2024	11,159,418			11,159,418