Consolidated Statements of Changes in Stockholders’ Equity - USD ($) $ in Thousands		Total	Capital Stock Preferred	Issued Common	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning Balance at Dec. 31, 2013	[1]	$ 81,603	$ 4	$ 6,715	$ 9,755	$ 65,659	$ (4)	$ (526)
Comprehensive income (loss):
Net Income (Loss)		23,675				23,675
Other comprehensive income (loss)		(728)					(728)
Dividends and dividend equivalents, net of estimated forfeitures		(907)				(907)
Share-based compensation		713			713
Excess tax benefits		463			463
Stock shares awarded, forfeited or vested		218						218
Stock shares repurchased for payment of taxes		(672)						(672)
Ending Balance at Dec. 31, 2014		104,365	4	6,715	10,931	88,427	(732)	(980)
Comprehensive income (loss):
Net Income (Loss)		26,191				26,191
Other comprehensive income (loss)		232					232
Dividends and dividend equivalents, net of estimated forfeitures		(1,087)				(1,087)
Share-based compensation		999			999
Excess tax benefits		453			453
Stock shares awarded, forfeited or vested		415						415
Stock shares repurchased for payment of taxes		(15,408)						(15,408)
Ending Balance at Dec. 31, 2015		116,160	4	6,715	12,383	113,531	(500)	(15,973)
Comprehensive income (loss):
Net Income (Loss)		31,184				31,184
Other comprehensive income (loss)		127					127
Dividends and dividend equivalents, net of estimated forfeitures		(2,063)				(2,063)
Share-based compensation		1,896			1,896
Excess tax benefits		0			0
Stock shares awarded, forfeited or vested		506						506
Stock shares repurchased for payment of taxes		(1,518)						(1,518)
Ending Balance at Dec. 31, 2016		$ 146,292	$ 4	$ 6,715	$ 14,279	$ 142,652	$ (373)	$ (16,985)

[1] See Note 1. Immaterial Error Corrections.