Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive Loss	Retained Earnings	Total
Balance, beginning of period at Dec. 31, 2016	$ 50	$ 5,192	$ (102)	$ (25)	$ 9,128	$ 14,243
Accrued dividends payable					(256)	(256)
Net unrealized holding gain (loss)				6		6
Proceeds from options exercised	1	116				117
Vesting of restricted stock		411				411
Net income					2,684	2,684
Balance, end of period at Dec. 31, 2017	51	5,719	(102)	(19)	11,556	17,205
Accrued dividends payable					(281)	(281)
Net unrealized holding gain (loss)				(18)		(18)
Proceeds from options exercised		12				12
Vesting of restricted stock		242				242
Net income					1,687	1,687
Balance, end of period at Dec. 31, 2018	$ 51	$ 5,973	$ (102)	$ (37)	$ 12,962	$ 18,847