Shareholders' Equity - Calculation of earning per share (Details 1) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Equity [Abstract]
Net Income	$ 1,317	$ 1,753
Weighted average common shares outstanding (basic) (in shares)	2,267	2,215
Unvested restricted stock	29	83
Weighted average common shares outstanding (diluted) (in shares)	2,296	2,298
Basic
Net income per share (in dollars per share)	$ 0.58	$ 0.79
Diluted
Net income per share (in dollars per share)	$ 0.57	$ 0.76