Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Basic and Diluted:
Net loss	$ (2,263)	$ (1,806)	$ (1,096)	$ (1,581)	$ 11
Weighted average common shares outstanding	5,961,636	6,022,983	5,958,407	6,076,838
Loss per common share	$ (0.38)	$ (0.30)	$ (0.18)	$ (0.26)