Bryanston Settlement Agreement (Details Textual) (USD $)				0 Months Ended								6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Jun. 30, 2013 Preferred Stock [Member]	Jun. 30, 2013 Series E Preferred Stock [Member]	Dec. 31, 2012 Series E Preferred Stock [Member]	Jun. 30, 2013 Event Occurs on or Before December 31, 2013 [Member] Mandatorily Redeemable Preferred Stock [Member]	Jun. 30, 2013 Event Occurs after December 31, 2013 and on or Before June 30, 2014 [Member] Mandatorily Redeemable Preferred Stock [Member] Minimum [Member]	Jun. 30, 2013 Event Occurs after December 31, 2013 and on or Before June 30, 2014 [Member] Mandatorily Redeemable Preferred Stock [Member] Maximum [Member]	Jun. 30, 2013 Event Occurs after June 30, 2013 and on or Before December 31, 2014 [Member] Mandatorily Redeemable Preferred Stock [Member]	Jun. 30, 2013 Event Occurs After June 30, 2014 and on or Before December 31, 2014 [Member] Mandatorily Redeemable Preferred Stock [Member]	Jun. 30, 2013 Event Does not Occur by June 30, 2015 [Member] Mandatorily Redeemable Preferred Stock [Member]	Jun. 30, 2013 Event Does not Occur by June 30, 2015 [Member] Mandatorily Redeemable Preferred Stock Redeemable Over Three Year Period [Member]
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items]
Shares redeemed				$ 1,500,000
Dividends payable	1,291,000		0
Stock payable					22,800,000	0	22,800,000	22,800,000	28,000,000	28,000,000
Preferred stock, per share liquidation value (usd per share)										$ 10
Dividends payable upon settlement event											1,200,000
Number of shares redeemable upon settlement event (shares)	1,551,000	0										150,000	150,000
Share value redeemable upon settlement event												$ 1,500,000	$ 1,500,000
Redeemable period upon settlement event												3 years