Quarterly report pursuant to Section 13 or 15(d)

Interest Rate Hedge Swaps (Details)

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Interest Rate Hedge Swaps (Details) - USD ($)
 1 Months Ended 3 Months Ended
Dec. 31, 2012
Jun. 30, 2015
Fair Value, Measurements, Recurring [Member]    
Assets, Prepaid expenses and other assets   $ 68,132
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]    
Assets, Prepaid expenses and other assets $ 0 0
Level 3 [Member] | Fair Value, Measurements, Recurring [Member]    
Assets, Prepaid expenses and other assets 0 0
Not Designated as Hedging Instrument [Member] | Interest rate contract [Member]    
Gain recognized in earnings   $ 0
Not Designated as Hedging Instrument [Member] | Interest rate contract [Member] | Fair Value, Measurements, Recurring [Member]    
Gain recognized in earnings $ 351,807