Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Equity, Class of Treasury Stock [Line Items]
Dividend payment from cash on hand	$ 3,408	$ 3,295
Series A Junior Participating Preferred Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Price of Rights per unit	$ 33.33