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Derivatives - Loss on derivative instruments included in the consolidated statements of operations (Details) (USD $)
3 Months Ended 6 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Derivatives - Loss On Derivative Instruments Included In Consolidated Statements Of Operations Details        
Unrealized loss on open non-hedge derivative instruments     $ (56,616)   
Loss on settlement of non-hedge derivative instruments     (30,071)   
Loss on derivative instruments $ (59,295)    $ (86,687)