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Convertible Preferred Stock (Details) (USD $)
3 Months Ended 1 Months Ended 0 Months Ended 3 Months Ended
Mar. 31, 2013
May 31, 2012
Series A Preferred Stock [Member]
Mar. 31, 2013
Series A Preferred Stock [Member]
Dec. 31, 2012
Series A Preferred Stock [Member]
Jul. 24, 2012
Series B Preferred Stock [Member]
Mar. 31, 2013
Series B Preferred Stock [Member]
Dec. 31, 2012
Series B Preferred Stock [Member]
Mar. 31, 2013
Class A Units [Member] [Member]
Mar. 31, 2013
Class B Units [Member]
Class of Stock [Line Items]                  
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 9,650,894             545,454 283,018
Proceeds from Issuance of stock   $ 6,000,000     $ 3,000,000        
Proceeds from Issuance of stock, net   5,800,000     3,000,000        
Liquidation Preferences   $ 11.00 $ 11.00 $ 11.00 $ 10.60 $ 10.60 $ 10.60    
Redemption Premium   $ 0.01     $ 0.01        
Annualized rate of dividend (per share)   $ 0.77     $ 0.74        
Redemption price per share   $ 11.00     $ 10.60