Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Total
Beginning Balance, Shares at Dec. 31, 2015	2,785,044
Beginning Balance, Amount at Dec. 31, 2015	$ 3	$ 8,202	$ (35)	$ 389	$ 8,559
Stock-based compensation expense		882			882
Exercise of stock awards, net of tax, shares	75,900
Exercise of stock awards, net of tax, amount		36			36
Dividends				(453)	(453)
Foreign currency translation			(1)		(1)
Net income				1,555	1,555
Ending Balance, Shares at Dec. 31, 2016	2,860,944
Ending Balance, Amount at Dec. 31, 2016	$ 3	9,120	(36)	1,491	10,578
Stock-based compensation expense		573			573
Exercise of stock awards, net of tax, shares	128,315
Exercise of stock awards, net of tax, amount		389			389
Shares issued upon acquisition of Interwest (see Note 4), shares	25,235
Shares issued upon acquisition of Interwest (see Note 4), amount		318			318
Dividends				(588)	(588)
Foreign currency translation			70		70
Net income				1,871	1,871
Ending Balance, Shares at Dec. 31, 2017	3,014,494
Ending Balance, Amount at Dec. 31, 2017	$ 3	$ 10,400	$ 34	$ 2,774	$ 13,211