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Preferred Stock (Details) (USD $)
 0 Months Ended 3 Months Ended 9 Months Ended
Nov. 19, 2010
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Jun. 30, 2012
Dec. 31, 2011
Class of Stock [Line Items]              
Preferred Offering Units 10,582,011            
Preferred Stock, Par or Stated Value Per Share $ 0.01 $ 0.01   $ 0.01     $ 0.01
Sale of Stock, Price Per Share $ 0.945            
Proceeds from Issuance or Sale of Equity       $ 12,160,227 $ 21,167,682    
Common Stock Dividends, Shares       7,950,107      
Preferred Stock, pre-payment, Minimum Increment Value   1,000,000   1,000,000      
Preferred Stock, Pre-payment Option, Percent of Outstanding Balance       110.00%      
Preferred Stock, Pre-payment Option, Minimum Number of Days Notice to Pre-pay       30 days      
Preferred Offering, Maximum Period of Escrow of Proceeds 2 years 6 months            
Preferred Stock Conversion, Conversion Price per share           $ 2.0004  
Adjusted Conversion Price           $ 1.18  
Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments   (6,200) 70,800 (134,800) 87,900    
Series E Seven Percent Senior Convertible Preferred Stock [Member]
              
Class of Stock [Line Items]              
Percent of Preferred Shares Required to be Redeemed Monthly       3.70%      
Number of Shares of Preferred Stock Included in Preferred Offering Unit 1            
Preferred Stock, Dividend Rate, Percentage 7.00%            
Warrant to purchase 0.25 of a share of Common Stock [Member]
              
Class of Stock [Line Items]              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 0.25            
Stock and Warrants Issued During Period, Shares, Preferred Stock and Warrants 1,322,486 1,747,188   1,747,188      
Preferred Offering Unit [Member]
              
Class of Stock [Line Items]              
Proceeds from Issuance or Sale of Equity 10,000,000            
Net Proceeds from Issuance or Sale of Equity 8,876,700            
Escrow Deposit 2,500,000            
Warrant to purchase 0.0155 of a share of Common Stock [Member]
              
Class of Stock [Line Items]              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 0.0155            
Stock and Warrants Issued During Period, Shares, Preferred Stock and Warrants 164,418            
Preferred Stock [Member]
              
Class of Stock [Line Items]              
Fair value of Equity           2,721,100  
Embedded Derivative Financial Instruments [Member]
              
Class of Stock [Line Items]              
Fair value of Equity           257,000  
Warrant [Member]
              
Class of Stock [Line Items]              
Fair value of Equity           $ 170,600