Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Common Stock [Member]
Shares, Outstanding				38,661,850
Stockholders' Equity Attributable to Parent	$ 274,950	$ 372,990	$ (98,427)	$ 387
Cumulative Effect of New Accounting Principle in Period of Adoption | Accounting Standards Update 2014-09 [Member]	(3,494)		(3,494)
Stock Granted, Value, Share-based Compensation, Net of Forfeitures	$ 532
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited And Expirations In Period	25,812
Net income	$ 2,529		2,529
Shares, Outstanding				38,636,038
Stockholders' Equity Attributable to Parent	274,517	373,522	(99,392)	$ 387
Shares, Outstanding				39,009,451
Stockholders' Equity Attributable to Parent	265,236	375,734	(110,888)	$ 390
Stock Granted, Value, Share-based Compensation, Net of Forfeitures	$ 488
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited And Expirations In Period	22,118
Shares Paid for Tax Withholding for Share Based Compensation	1,575
Adjustments Related to Tax Withholding for Share-based Compensation	$ 16	16
Treasury Stock, Shares, Acquired				255,554
Treasury Stock, Value, Acquired, Cost Method	3,383	3,381		$ 2
Net income	913		913
Shares, Outstanding				38,730,204
Stockholders' Equity Attributable to Parent	$ 263,238	$ 372,825	$ (109,975)	$ 388