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Derivatives - Net fair value of the Company’s derivative assets and liabilities (Details) (USD $)
Mar. 31, 2014
Mar. 31, 2013
Derivatives - Net Fair Value Of Companys Derivative Assets And Liabilities Details    
Current assets: Derivative instruments      
Noncurrent assets: Derivative instruments      
Total assets      
Current liabilities: Derivative instruments 44,981   
Noncurrent liabilities: Derivative instruments      
Total Liabilities $ 44,981