Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common stock	Treasury stock	Additional paid-in capital	Accumulated deficit	Accumulated other comprehensive (loss) income
Balance at Dec. 31, 2022	$ 93,622	$ 24	$ (638)	$ 1,029,881	$ (936,273)	$ 628
Balance (in shares) at Dec. 31, 2022		1,242
Compensation expense for issuance of stock options to employees	71			71
Other comprehensive income (loss), net of tax	91					91
Net loss	(16,824)				(16,824)
Balance at Mar. 31, 2023	76,960	$ 24	(638)	1,029,952	(953,097)	719
Balance (in shares) at Mar. 31, 2023		1,242
Balance at Dec. 31, 2023	(157,956)	$ 1	(638)	1,030,383	(1,189,127)	1,425
Balance (in shares) at Dec. 31, 2023		1,242
Compensation expense for issuance of stock options to employees	130			130
Other comprehensive income (loss), net of tax	(550)					(550)
Net loss	(27,395)				(27,395)
Balance at Mar. 31, 2024	$ (185,771)	$ 1	$ (638)	$ 1,030,513	$ (1,216,522)	$ 875
Balance (in shares) at Mar. 31, 2024		1,242