Preferred Stock (Series A Preferred Stock) (Narrative) (Details) - Series A Preferred Stock [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Apr. 15, 2016	Dec. 31, 2015	Dec. 30, 2005
Class of Stock [Line Items]
Preferred stock, shares issued					1,521,258
Preferred stock, shares outstanding			803,270	803,270
Preferred stock, annual dividend rate	8.00%	8.00%
Preferred stock, liquidation preference per share	$ 10.00
Preferred stock, fixed annual amount of dividend per share	0.80
Preferred stock, redemption price	$ 10.00		$ 10.00
Preferred stock, deemed dividend		$ 2,326
Preferred stock dividends, adjustment to net earnings attributable to common shareholders		$ 874