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			1,979		1,979
Conversion of cumulative preferred	(398)	398
Exercise of director stock options		16			16
Stock based compensation		42			42
Change in accumulated other comprehensive income (loss)				293	293
Dividend declared and paid on common stock			(160)		(160)
Dividend declared and paid on preferred stock			(247)		(247)
Balance at Jun. 30, 2016	7,261	25,862	7,876	448	41,447
Balance at Dec. 31, 2016	7,261	25,920	9,706	(523)	42,364
Increase (Decrease) in Stockholders' Equity
Net income			2,015		2,015
Conversion of cumulative preferred	(7,077)	7,077
Redemption of cumulative preferred	$ (184)	(8)			(192)
Stock based compensation		61			61
Change in accumulated other comprehensive income (loss)				491	491
Dividend declared and paid on common stock			(162)		(162)
Dividend declared and paid on preferred stock			(238)		(238)
Balance at Jun. 30, 2017		$ 33,050	$ 11,321	$ (32)	$ 44,339