Condensed Consolidated Statements of Stockholders Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Treasury Stock (Deficit)	Total
Beginning Balance, shares at Dec. 31, 2016	13,754,749
Beginning Balance, amount at Dec. 31, 2016	$ 8,253	$ 25,382	$ 240	$ 2,061	$ (162)	$ 35,774
Common stock options exercised and issued, shares	89,835
Common stock options exercised and issued, amount	$ 54	129				183
Share-based compensation expense		55				55
Restricted stock unit compensation expense		76				76
Dividends declared			(2,064)			(2,064)
Net income (loss)			(3,626)			(3,626)
Unrealized gain on available-for-sale securities				2,257		2,257
Repurchase of common stock					(648)	(648)
Ending Balance, shares at Dec. 31, 2017	13,844,584
Ending Balance, amount at Dec. 31, 2017	$ 8,307	25,642	(5,450)	4,318	(810)	32,007
Restricted stock units issued, shares	38,353
Restricted stock units issued, amount	$ 23	(23)				0
Share-based compensation expense		95				95
Restricted stock unit compensation expense		153				153
Dividends declared			(1,066)			(1,066)
Net income (loss)			(195)			(195)
Effect of adoption of ASU 2016-01			4,318	(4,318)		0
Repurchase of common stock					(3,282)	(3,282)
Ending Balance, shares at Dec. 31, 2018	13,882,937
Ending Balance, amount at Dec. 31, 2018	$ 8,330	$ 25,867	$ (2,393)	$ 0	$ (4,092)	$ 27,712