CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balances at Dec. 31, 2015	$ 126	$ 63,815	$ 83,097	$ (71)	$ 146,967
Net income			4,732		4,732
Unrealized gains on available-for-sale securities, net of taxes				1,199	1,199
Common shares issued for employee stock-based awards		3			3
Stock-based compensation	1	177			178
Cash dividends declared			(758)		(758)
Balances at Jun. 30, 2016	127	63,995	87,071	1,128	152,321
Balances at Dec. 31, 2016	127	64,201	90,964	(993)	154,299
Net income			5,152		5,152
Unrealized gains on available-for-sale securities, net of taxes				1,167	1,167
Stock-based compensation		590			590
Cash dividends declared			(1,268)		(1,268)
Balances at Jun. 30, 2017	$ 127	$ 64,791	$ 94,848	$ 174	$ 159,940