Condensed Consolidated Statements of Changes in Mezzanine Equity and Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Class C Special Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive (Loss)/Gain, Net of Tax	Accumulated Deficit	Total
Balance at Dec. 31, 2020	$ 1		$ 214,354	$ (2,246)	$ (11,437)	$ (4,972)
Beginning Balance, Common (in shares) at Dec. 31, 2020	12,430,000
Beginning Balance, Treasury (in shares) at Dec. 31, 2020				76,000
Beginning balance, permanent and temporary equity at Dec. 31, 2020							$ 195,700
Increase (decrease) in Stockholders' Equity
Stock-based Compensation Expense			7,521				7,521
Treasury Stock Purchases for Restricted Stock Vests				$ (889)			(889)
Treasury Stock Purchases for Restricted Stock Vests (in shares)				28,000
Issuance of Restricted Stock Awards (in shares)	463,000
Issuance of Common Shares upon Stock Option and ESPP Exercise			336				336
Issuance of Common Shares upon Stock Option and ESPP Exercise (in shares)	12,000
Restricted Stock Awards Forfeitures (in shares)	(81,000)			(21,000)
Other Comprehensive Income					7,202		7,202
Net Loss						(18,467)	(18,467)
Ending balance, permanent and temporary equity at Sep. 30, 2021							191,403
Balance at Sep. 30, 2021	$ 1		222,211	$ (3,135)	(4,235)	(23,439)
Ending Balance, Common (in shares) at Sep. 30, 2021	12,824,000
Ending Balance, Treasury (in shares) at Sep. 30, 2021				83,000
Balance at Jun. 30, 2021	$ 1		219,403	$ (3,062)	(5,433)	(18,992)
Beginning Balance, Common (in shares) at Jun. 30, 2021	12,826,000
Beginning Balance, Treasury (in shares) at Jun. 30, 2021				80,000
Beginning balance, permanent and temporary equity at Jun. 30, 2021							191,917
Increase (decrease) in Stockholders' Equity
Stock-based Compensation Expense			2,808				2,808
Treasury Stock Purchases for Restricted Stock Vests				$ (73)			(73)
Treasury Stock Purchases for Restricted Stock Vests (in shares)				3,000
Issuance of Restricted Stock Awards (in shares)	6,000
Restricted Stock Awards Forfeitures (in shares)	(8,000)
Other Comprehensive Income					1,198		1,198
Net Loss						(4,447)	(4,447)
Ending balance, permanent and temporary equity at Sep. 30, 2021							191,403
Balance at Sep. 30, 2021	$ 1		222,211	$ (3,135)	(4,235)	(23,439)
Ending Balance, Common (in shares) at Sep. 30, 2021	12,824,000
Ending Balance, Treasury (in shares) at Sep. 30, 2021				83,000
Balance at Dec. 31, 2021	$ 1		387,844	$ (3,135)	(3,055)	(47,765)	$ 333,890
Beginning Balance, Common (in shares) at Dec. 31, 2021	16,913,000
Beginning Balance, Treasury (in shares) at Dec. 31, 2021				83,000			82,662
Beginning balance, permanent and temporary equity at Dec. 31, 2021							$ 358,740
Increase (decrease) in Stockholders' Equity
Stock-based Compensation Expense			10,862				10,862
Treasury Stock Purchases for Restricted Stock Vests				$ (1,840)			(1,840)
Treasury Stock Purchases for Restricted Stock Vests (in shares)				63,000
Issuance of Restricted Stock Awards (in shares)	723,000
Issuance of Common Shares upon Stock Option and ESPP Exercise			690				690
Issuance of Common Shares upon Stock Option and ESPP Exercise (in shares)	24,000
Dividends on Series A Convertible Preferred Stock						(1,218)	(1,218)
Restricted Stock Awards Forfeitures (in shares)	(46,000)
Other Comprehensive Income					13,094		13,094
Net Loss						(43,653)	(43,653)
Ending balance, permanent and temporary equity at Sep. 30, 2022							336,675
Balance at Sep. 30, 2022	$ 1		399,396	$ (4,975)	10,039	(92,636)	$ 311,825
Ending Balance, Common (in shares) at Sep. 30, 2022	17,614,000	11,000
Ending Balance, Treasury (in shares) at Sep. 30, 2022				146,000			145,851
Balance at Jun. 30, 2022	$ 1		395,043	$ (4,736)	5,430	(83,630)
Beginning Balance, Common (in shares) at Jun. 30, 2022	17,566,000
Beginning Balance, Treasury (in shares) at Jun. 30, 2022				139,000
Beginning balance, permanent and temporary equity at Jun. 30, 2022							$ 336,958
Increase (decrease) in Stockholders' Equity
Stock-based Compensation Expense			3,870				3,870
Treasury Stock Purchases for Restricted Stock Vests				$ (239)			(239)
Treasury Stock Purchases for Restricted Stock Vests (in shares)				7,000
Issuance of Restricted Stock Awards	$ 0	$ 0	0	$ 0	0	0	0
Issuance of Restricted Stock Awards (in shares)	54,000
Issuance of Common Shares upon Stock Option and ESPP Exercise			483				483
Issuance of Common Shares upon Stock Option and ESPP Exercise (in shares)	16,000
Dividends on Series A Convertible Preferred Stock						(406)	(406)
Restricted Stock Awards Forfeitures (in shares)	(22,000)
Other Comprehensive Income					4,609		4,609
Net Loss						(8,600)	(8,600)
Ending balance, permanent and temporary equity at Sep. 30, 2022							336,675
Balance at Sep. 30, 2022	$ 1		$ 399,396	$ (4,975)	$ 10,039	$ (92,636)	$ 311,825
Ending Balance, Common (in shares) at Sep. 30, 2022	17,614,000	11,000
Ending Balance, Treasury (in shares) at Sep. 30, 2022				146,000			145,851