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, 2014	$ 126	$ 63,532	$ 76,495	$ 316	$ 140,469
Net income			4,945		4,945
Unrealized gains (losses) on available-for-sale securities, net of taxes				491	491
Stock-based compensation		235			235
Cash dividends declared			(253)		(253)
Balances at Sep. 30, 2015	126	63,767	81,187	807	145,887
Balances at Dec. 31, 2015	126	63,815	83,097	(71)	146,967
Net income			7,143		7,143
Unrealized gains (losses) on available-for-sale securities, net of taxes				1,548	1,548
Common shares issued for employee stock-based awards		53			53
Stock-based compensation	1	261			262
Cash dividends declared			(1,138)		(1,138)
Balances at Sep. 30, 2016	$ 127	$ 64,129	$ 89,102	$ 1,477	$ 154,835