8. Income per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Numerator:
Net income (numerator for basic and diluted earnings per share)	$ 600	$ 719	$ 650	$ 2,597
Denominator:
Denominator for basic earnings per share weighted average shares	13,665,976	13,741,170	13,602,207	13,735,361
Effect of dilutive securities:
Options and RSUs	22,321	95,134	102,677	89,895
Denominator
Denominator for diluted earnings per share weighted average shares	13,688,297	13,836,304	13,704,884	13,825,256
Basic income per share	$ 0.04	$ 0.05	$ 0.05	$ 0.19
Diluted income per share	$ 0.04	$ 0.05	$ 0.05	$ 0.19