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Fair Value Disclosures - Assets and liabilities recorded at fair value on recurring basis (Details) (Recurring Basis, USD $)
Jun. 30, 2014
Mar. 31, 2014
Level 1
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest rate swap agreements - liability     
Interest rate swap agreements - asset      
Level 2
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest rate swap agreements - liability (88,682)  
Interest rate swap agreements - asset 59,998 183,603
Level 3
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest rate swap agreements - liability     
Interest rate swap agreements - asset      
Fair Value
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest rate swap agreements - liability (88,682)  
Interest rate swap agreements - asset $ 59,998 $ 183,603