Preferred Stock (Details) (Series A preferred stock [Member], USD $)	1 Months Ended	6 Months Ended
	Mar. 31, 2012	Jun. 30, 2013	Nov. 30, 2012	Mar. 31, 2007 Liquidation preference [Member]
Preferred Stock (Textual) [Abstract]
Issued and outstanding shares of Series A preferred stock				5,000
Per share amount of Series A preferred stock			$ 1,000
Preferred stock dividend annual rate		$ 40
Series A preferred stock repurchased	5,000