CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Total	Series B Preferred Stock [Member] Preferred Stock [Member]	Series B Preferred Stock [Member] Common Stock [Member]	Series B Preferred Stock [Member] Additional Paid-In Capital [Member]	Series B Preferred Stock [Member] Retained Earnings [Member]	Series B Preferred Stock [Member]
Balance at Dec. 31, 2014	$ 4	$ 101	$ 75,848	$ 7,857	$ 83,810
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	0	0	0	865	865
Exercise of stock options (20,500 shares)	0	0	93	0	93
Stock-based compensation	0	0	34	0	34
Dividend declared on Series B preferred stock						$ 0	$ 0	$ 0	$ (527)	$ (527)
Amortization of discount on Series B preferred stock						0	0	68	(68)	0
Balance at Mar. 31, 2015	4	101	76,043	8,127	84,275
Balance at Dec. 31, 2015	4	101	76,335	10,016	86,456
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	0	0	0	907	907
Stock-based compensation	0	0	48	0	48
Dividend declared on Series B preferred stock						0	0	0	(526)	(526)
Amortization of discount on Series B preferred stock						$ 0	$ 0	$ 68	$ (68)	$ 0
Balance at Mar. 31, 2016	$ 4	$ 101	$ 76,451	$ 10,329	$ 86,885