Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Preferred Stock.	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Balance at Dec. 31, 2015	$ 7,659	$ 25,406	$ 6,304	$ 155	$ 39,524
Increase (Decrease) in Stockholders' Equity
Net income			3,114		3,114
Conversion of cumulative preferred	(398)	398
Exercise of director stock options		32			32
Stock based compensation		63			63
Change in accumulated other comprehensive income (loss)				188	188
Dividend declared and paid on common stock			(160)		(160)
Dividend declared and paid on preferred stock			(371)		(371)
Balance at Sep. 30, 2016	7,261	25,899	8,887	343	42,390
Balance at Dec. 31, 2016	7,261	25,920	9,706	(523)	42,364
Increase (Decrease) in Stockholders' Equity
Net income			3,137		3,137
Conversion of cumulative preferred	(7,077)	7,077
Redemption of cumulative preferred	$ (184)	(8)			(192)
Stock based compensation		92			92
Change in accumulated other comprehensive income (loss)				440	440
Dividend declared and paid on common stock			(162)		(162)
Dividend declared and paid on preferred stock			(238)		(238)
Balance at Sep. 30, 2017		$ 33,081	$ 12,443	$ (83)	$ 45,441