Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands		Preferred Stock [Member]	Common Stock [Member]		Retained Earnings [Member]		AOCI Attributable to Parent [Member]		Total
Balance at Dec. 31, 2014		$ 19,931	$ 23,891		$ 59,867		$ (87)		$ 103,602
Balance (in shares) at Dec. 31, 2014			13,294
Net income					8,586				8,586
Other comprehensive income (loss), net of tax							(167)		(167)
Comprehensive income									8,419
Dividend on preferred stock					(189)				(189)
Dividend on common stock					(1,600)
Common stock issued under employee plans
Common stock issued under employee plans (in shares)			9
Stock options exercised (in shares)			39
Stock options exercised			$ 156						156
Compensation expense associated with stock options			42						42
Compensation expense associated with restricted stock			$ 89
Preferred stock redemption		(20,000)			(33)				(20,033)
Preferred stock accretion		69			(69)
Balance (in shares) at Dec. 31, 2015	[1]		13,342
Balance at Dec. 31, 2015			$ 24,214	[1]	66,562	[1]	(254)	[1]	90,522	[1]
Common stock issued under employee plans
Net income					2,962				2,962
Other comprehensive income (loss), net of tax							1,743		1,743
Comprehensive income									4,705
Dividend on preferred stock
Dividend on common stock					(1,203)				(1,203)
Common stock issued under employee plans			$ (84)						(84)
Common stock issued under employee plans (in shares)			26
Stock options exercised (in shares)			1
Stock options exercised			$ 4						4
Compensation expense associated with stock options			18						18
Compensation expense associated with restricted stock			$ 163						163
Balance (in shares) at Sep. 30, 2016			13,369
Balance at Sep. 30, 2016			$ 24,483		68,321		1,489		94,293	[2]
Common stock issued under employee plans			$ 84						$ 84

[1] Excludes 43 unvested restricted shares

[2] Excludes 70 unvested restricted shares