Stockholder's Equity (Details 1) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stockholders' Equity (Details) [Abstract]
Preferred Stock, Shares Outstanding	25,875,000	26,108,236	26,224,854	25,724,854
Preferred stock, shares issued	0	0	11,500,000
Preferred stock, shares redeemed	0	0	(11,000,000)
Preferred stock, shares converted	(233,236)	(116,618)	0
Preferred stock balance average rate	0.065	0.06496	0.06493	0.07013
Preferred stock balance issued average rate	0	0	0.065
Preferred stock balance redeemed average rate	0	0	0.07716
Preferred stock balance converted average rate	0.06	0.06	0
Preferred stock redemption charge	$ 0	$ 0	$ 6,242,000