Shareholders' Equity - Calculation of earning per share (Details 1) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Equity [Abstract]
Net Income	$ 714	$ 98	$ 707	$ 331	$ 812	$ 1,038
Weighted average common shares outstanding (basic) (in shares)	2,324		2,267		2,322	2,241
Unvested restricted stock (in shares)	60		83		60	83
Weighted average common shares outstanding (diluted) (in shares)	2,384		2,350		2,382	2,324
Basic
Net Income per share (in dollars per share)	$ 0.31		$ 0.31		$ 0.35	$ 0.46
Diluted
Net income per share (in dollars per share)	$ 0.30		$ 0.30		$ 0.34	$ 0.45