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			4,713				4,713
Treasury Stock Purchases for Restricted Stock Vests				$ (816)			(816)
Treasury Stock Purchases for Restricted Stock Vests (in shares)				25
Issuance of Restricted Stock Awards (in shares)	457
Issuance of Common Shares upon Stock Option and ESPP Exercise			337				337
Issuance of Common Shares upon Stock Option and ESPP Exercise (in shares)	12
Restricted Stock Awards Forfeitures			(1)				(1)
Restricted Stock Awards Forfeitures (in shares)	(73)			(21)
Other Comprehensive Income					6,004		6,004
Net Loss						(14,020)	(14,020)
Balance at Jun. 30, 2021	$ 1		219,403	$ (3,062)	(5,433)	(18,992)	191,917
Balance (in shares) at Jun. 30, 2021	12,826			80
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
Stock-based Compensation Expense			2,844				2,844
Treasury Stock Purchases for Restricted Stock Vests				$ (468)			(468)
Treasury Stock Purchases for Restricted Stock Vests (in shares)				15
Issuance of Restricted Stock Awards (in shares)	19
Issuance of Common Shares upon Stock Option and ESPP Exercise			337				337
Issuance of Common Shares upon Stock Option and ESPP Exercise (in shares)	12
Restricted Stock Awards Forfeitures			(1)				(1)
Restricted Stock Awards Forfeitures (in shares)	(35)			(21)
Other Comprehensive Income					(401)		(401)
Net Loss						(14,106)	(14,106)
Balance at Jun. 30, 2021	$ 1		219,403	$ (3,062)	(5,433)	(18,992)	191,917
Balance (in shares) at Jun. 30, 2021	12,826			80
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
Balance, permanent and temporary equity, beginning balance at Dec. 31, 2021							358,740
Increase (decrease) in Stockholders' Equity
Stock-based Compensation Expense			6,993				6,993
Treasury Stock Purchases for Restricted Stock Vests				$ (1,601)			(1,601)
Treasury Stock Purchases for Restricted Stock Vests (in shares)				56
Issuance of Restricted Stock Awards (in shares)	669
Issuance of Common Shares upon Stock Option and ESPP Exercise			206				206
Issuance of Common Shares upon Stock Option and ESPP Exercise (in shares)	8
Dividends on Series A Convertible Preferred Stock						(812)	(812)
Restricted Stock Awards Forfeitures (in shares)	(24)
Other Comprehensive Income					8,485		8,485
Net Loss						(35,053)	(35,053)
Balance, permanent and temporary equity, end balance at Jun. 30, 2022							336,958
Balance at Jun. 30, 2022	$ 1		395,043	$ (4,736)	5,430	(83,630)	312,108
Balance (in shares) at Jun. 30, 2022	17,566			139
Balance at Mar. 31, 2022	$ 1		391,084	$ (4,253)	2,712	(68,300)
Balance (in shares) at Mar. 31, 2022	17,374			123
Balance, permanent and temporary equity, beginning balance at Mar. 31, 2022							346,094
Increase (decrease) in Stockholders' Equity
Stock-based Compensation Expense			3,756				3,756
Treasury Stock Purchases for Restricted Stock Vests				$ (483)			(483)
Treasury Stock Purchases for Restricted Stock Vests (in shares)				16
Issuance of Restricted Stock Awards	$ 0	$ 0	0	$ 0	0	0	0
Issuance of Restricted Stock Awards (in shares)	208
Issuance of Common Shares upon Stock Option and ESPP Exercise			203				203
Issuance of Common Shares upon Stock Option and ESPP Exercise (in shares)	8
Dividends on Series A Convertible Preferred Stock						(407)	(407)
Restricted Stock Awards Forfeitures (in shares)	(24)
Other Comprehensive Income					2,718		2,718
Net Loss						(14,923)	(14,923)
Balance, permanent and temporary equity, end balance at Jun. 30, 2022							336,958
Balance at Jun. 30, 2022	$ 1		$ 395,043	$ (4,736)	$ 5,430	$ (83,630)	$ 312,108
Balance (in shares) at Jun. 30, 2022	17,566			139