Condensed Consolidated Statement of Changes In Stockholders' Equity - 6 months ended Jun. 30, 2017 - USD ($) $ in Thousands	Total	Capital Stock Preferred	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning Balance at Dec. 31, 2016	$ 146,292	$ 4	$ 6,715	$ 14,279	$ 142,652	$ (373)	$ (16,985)
Comprehensive income:
Net income	15,047				15,047
Other Comprehensive loss	(81)					(81)
Dividends and dividend equivalents, net of estimated forfeitures	(1,374)				(1,374)
Share-based compensation	1,304			1,304
Stock shares awarded, forfeited, and/or vested	433			(860)			1,293
Stock shares repurchased	(1,131)						(1,131)
Ending Balance at Jun. 30, 2017	$ 160,490	$ 4	$ 6,715	$ 14,723	$ 156,325	$ (454)	$ (16,823)