Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands	Common Stock	Capital deficiency	Accumulated earnings	Total
Beginning balance at Dec. 31, 2021	$ 11	$ (110,782)	$ (10,249)	$ (121,020)
Beginning balance (in shares) at Dec. 31, 2021	11,255,466
Shares issued under stock-based compensation plans		(1,076)		(1,076)
Shares issued under stock-based compensation plans (in shares)	134,889
Stock-based compensation		3,479		3,479
Components of comprehensive income:
Net income			36,540	36,540
Ending balance at Dec. 31, 2022	$ 11	(108,379)	26,291	$ (82,077)
Ending balance (in shares) at Dec. 31, 2022	11,390,355			11,390,355
Shares issued under stock-based compensation plans		(368)		$ (368)
Shares issued under stock-based compensation plans (in shares)	68,980
Stock-based compensation		7,507		7,507
Repurchase and retirement of common shares		(983)		$ (983)
Repurchase and retirement of common shares (in shares)	13,180			(13,180)
Components of comprehensive income:
Net income			23,985	$ 23,985
Ending balance at Dec. 31, 2023	$ 11	$ (102,223)	$ 50,276	$ (51,936)
Ending balance (in shares) at Dec. 31, 2023	11,446,155			11,446,155