Shareholders' Equity - Calculation of earning per share (Details 1) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Equity [Abstract]
Net Income	$ 1,457	$ 671	$ 2,495	$ 802
Weighted average common shares outstanding (basic) (in shares)	2,295	2,262	2,259	2,264
Unvested restricted stock (in shares)	82	29	82	29
Weighted average common shares outstanding (diluted) (in shares)	2,377	2,291	2,341	2,293
Basic
Net Income per share	$ 0.63	$ 0.30	$ 1.10	$ 0.35
Diluted
Net income per share	$ 0.61	$ 0.29	$ 1.07	$ 0.35