Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balances at Dec. 31, 2014	$ 8,688	$ 163,287	$ (5,672)	$ 166,303
Net income		8,076		8,076
Dividends		(3,686)		(3,686)
Exercise of stock options	5	87		92
Other comprehensive income (loss), net of tax			(3,215)	(3,215)
Balances at Jun. 30, 2015	8,693	167,764	(8,887)	167,570
Balances at Dec. 31, 2015	8,697	171,353	(7,936)	172,114
Net income		7,644		7,644
Dividends		(3,827)		(3,827)
Other comprehensive income (loss), net of tax			3,997	3,997
Balances at Jun. 30, 2016	$ 8,697	$ 175,170	$ (3,939)	$ 179,928