Condensed Consolidated Statements of Changes in Mezzanine Equity and Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock	Class C Special Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive Gain/(Loss), Net of Tax	Accumulated Deficit	Total
Balance at Dec. 31, 2020	$ 1		$ 214,354	$ (2,246)	$ (11,437)	$ (4,972)	$ 195,700
Balance (in shares) at Dec. 31, 2020	12,430			76
Increase (decrease) in Stockholders' Equity
Stock-based Compensation Expense			1,869				1,869
Treasury Stock Purchases for Restricted Stock Vests				$ (348)			(348)
Treasury Stock Purchases for Restricted Stock Vests (in shares)				10
Issuance of Restricted Stock Awards (in shares)	438
Restricted Stock Awards Forfeitures (in shares)	(38)
Other Comprehensive Income					6,405		6,405
Net Loss (Income)						86	86
Balance at Mar. 31, 2021	$ 1		216,223	$ (2,594)	(5,032)	(4,886)	203,712
Balance (in shares) at Mar. 31, 2021	12,830			86
Increase (decrease) in Stockholders' Equity
Balance, permanent and temporary equity							358,740
Balance at Dec. 31, 2021	$ 1		387,844	$ (3,135)	(3,055)	(47,765)	333,890
Balance (in shares) at Dec. 31, 2021	16,913			83
Increase (decrease) in Stockholders' Equity
Stock-based Compensation Expense			3,237				3,237
Treasury Stock Purchases for Restricted Stock Vests				$ (1,118)			(1,118)
Treasury Stock Purchases for Restricted Stock Vests (in shares)				40
Issuance of Restricted Stock Awards	$ 0	$ 0	0	$ 0	0	0	0
Issuance of Restricted Stock Awards (in shares)	461
Issuance of Common Shares upon Stock Option and ESPP Exercise			3				3
Dividends on Series A Convertible Preferred Stock						(405)	(405)
Other Comprehensive Income					5,767		5,767
Net Loss (Income)						(20,130)	(20,130)
Balance at Mar. 31, 2022	$ 1		$ 391,084	$ (4,253)	$ 2,712	$ (68,300)	321,244
Balance (in shares) at Mar. 31, 2022	17,374			123
Increase (decrease) in Stockholders' Equity
Balance, permanent and temporary equity							$ 346,094