Income per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income per Common Share [Abstract]
Diluted net income per common share	$ 0.17	$ 0.09	$ 0.27	$ 0.27
Basic net income per common share	$ 0.17	$ 0.09	$ 0.27	$ 0.27
Numerator:
Net income	$ 870	$ 469	$ 1,390	$ 1,370
Denominator:
Weighted average common shares outstanding	5,138	5,059	5,117	5,043
Dilutive potential common shares	13	9	4	2
Shares used in diluted net loss per common share calculations	5,151	5,068	5,121	5,045
Shares excluded from diluted weighted shares outstanding	100,196	206,467	132,247	239,399