Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss, Net of Tax [Member]	(Accumulated Deficit)/Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	(Accumulated Deficit)/Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Total
Balance at Dec. 31, 2019	$ 1	$ 200,800	$ (723)	$ (4,871)	$ (8)	$ 17,584	$ (8)	$ 212,791
Balance (in shares) at Dec. 31, 2019	12,105		15
Stock-based Compensation Expense		2,424						2,424
Treasury stock purchases for restricted stock vests			$ (488)					(488)
Treasury stock purchases for restricted stock vests (in shares)			13
Issuance of Common Shares upon Stock Option and ESPP Exercise		281						281
Issuance of Common Shares upon Stock Option and ESPP Exercise (in shares)	7
(Losses)/Gains on Interest Rate Swap				(6,818)				(6,818)
Net Income/(Loss)						(7,011)		(7,011)
Balance at Mar. 31, 2020	$ 1	203,505	$ (1,211)	(11,689)		10,565		201,171
Balance (in shares) at Mar. 31, 2020	12,112		28
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
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)
(Losses)/Gains on Interest Rate Swap				6,405				6,405
Net Income/(Loss)						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