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, 2016	$ 19,204	$ (3,360)	$ 188	$ 16,032
Beginning 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 gain (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
Stock options exercised, Amount	$ 0			0
Stock options exercised, Shares	10,052
Repurchased shares, Amount	$ (536)			(536)
Repurchased shares, Shares	(101,975)
Stock awards issued, net of tax withholding, Amount	$ (448)			(448)
Stock awards issued, net of tax withholding, Shares	150,726
Issuance of stock through Employee Stock Purchase Plan, Amount	$ 19			19
Issuance of stock through Employee Stock Purchase Plan, Shares	3,012
Share-based compensation	$ 1,230			1,230
Net income		1,606		1,606
Other comprehensive income gain (loss)			(574)	(574)
Ending Balance, Amount at Dec. 31, 2018	$ 19,254	$ 3,695	$ 408	$ 23,357
Ending Balance, Shares at Dec. 31, 2018	8,338,628