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Equity-Based Compensation (Details) (Restricted stock, USD $)
0 Months Ended 3 Months Ended 32 Months Ended
Jun. 07, 2012
director
Jun. 07, 2011
director
Jul. 19, 2010
director
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Restricted stock
           
Equity-Based Compensation, Director's share            
Number of independent directors 3 3 3      
Number of shares received by independent directors 2,500 2,500 5,000      
Award vesting period       4 years    
Total equity-based compensation cost recognized in connection with granting of stock           $ 300,000
Period for recognition of equity-based compensation cost       4 years    
Recognized equity-based compensation expense, related to issuance of stock       $ 16,875 $ 12,656