Preferred Stock (Series A Preferred Stock) (Narrative) (Details) - Series A Preferred Stock [Member] - USD ($) $ / shares in Units, $ in Thousands		9 Months Ended	12 Months Ended
	Apr. 15, 2016	Sep. 30, 2016	Dec. 31, 2015	Dec. 30, 2005
Class of Stock [Line Items]
Preferred stock, shares sold				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
Dividends unpaid and accrued			$ 1,452
Dividends unpaid and accrued per share	$ 2.084940		$ 1.807
Change in value of preferred stock		$ 2,326
Change in net earnings available to common shareholders		$ 874