Shareholders' Equity - Calculation of earning per share (Details 1) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Equity [Abstract]
Net income (loss)	$ 4,597	$ (3,126)
Weighted average common shares outstanding (basic) (in shares)	2,182	2,143
Unvested restricted stock	82	124
Weighted average common shares outstanding (diluted) (in shares)	2,264	2,267
Basic
Net income (loss) per share (in dollars per share)	$ 2.11	$ (1.46)
Diluted
Net income (loss) per share (in dollars per share)	$ 2.03	$ (1.38)