Consolidated Statements' of Shareholders Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Total
Balance, beginning of the period at Dec. 31, 2014	$ 3,283	$ 9,456	$ 107,785	$ 3,086	$ 123,610
Comprehensive income:
Net income			10,223		10,223
Other comprehensive income				(859)	(859)
Share-based compensation		779			779
Restricted stock vested	13	(13)
Common stock issued	3	98			101
Common stock purchased	(42)	(1,437)			(1,479)
Cash dividends declared – common stock			(3,054)		(3,054)
Balance, end of period at Sep. 30, 2015	3,257	8,883	114,954	2,227	129,321
Balance, beginning of the period at Dec. 31, 2015	3,301	10,420	116,167	1,171	131,059
Comprehensive income:
Net income			10,311		10,311
Other comprehensive income				531	531
Share-based compensation		914			914
Restricted stock vested	11	(11)
Common stock issued	9	341			350
Common stock purchased	(4)	(151)			(155)
Cash dividends declared – common stock			(3,316)		(3,316)
Balance, end of period at Sep. 30, 2016	$ 3,317	$ 11,513	$ 123,162	$ 1,702	$ 139,694