CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Retained Earnings (Deficit)	Accumulated Other Comprehensive Income (Loss)	Total
Beginning Balance, Amount at Dec. 31, 2015	$ 19,051	$ (5,016)	$ 659	$ 14,694
Beginning Balance, Shares at Dec. 31, 2015	7,943,720
Stock options exercised, Amount	$ (81)			(81)
Stock options exercised, Shares	30,948
Repurchased shares, Amount	$ (191)			(191)
Repurchased shares, Shares	(80,345)
Stock awards issued, net of tax withholding, Amount	$ (87)			(87)
Stock awards issued, net of tax withholding, Shares	118,737
Issuance of stock through Employee Stock Purchase Plan, Amount	$ 6			6
Issuance of stock through Employee Stock Purchase Plan, Shares	2,686
Share-based compensation	$ 506			506
Net income		1,656		1,656
Other comprehensive income (loss)			(471)	(471)
Ending Balance, Amount at Dec. 31, 2016	$ 19,204	(3,360)	188	16,032
Ending Balance, Shares at Dec. 31, 2016	8,015,746
Stock options exercised, Amount	$ (549)			(549)
Stock options exercised, Shares	131,065
Stock awards issued, net of tax withholding, Amount	$ (401)			(401)
Stock awards issued, net of tax withholding, Shares	128,262
Issuance of stock through Employee Stock Purchase Plan, Amount	$ 12			12
Issuance of stock through Employee Stock Purchase Plan, Shares	1,740
Share-based compensation	$ 723			723
Net income		5,449		5,449
Other comprehensive income (loss)			794	794
Ending Balance, Amount at Dec. 31, 2017	$ 18,989	$ 2,089	$ 982	$ 22,060
Ending Balance, Shares at Dec. 31, 2017	8,276,813