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Derivatives - Loss on derivative instruments included in the consolidated statements of operations (Details) (USD $)	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Derivatives - Loss On Derivative Instruments Included In Consolidated Statements Of Operations Details
Unrealized loss on open non-hedge derivative instruments	$ (21,057)
Loss on settlement of non-hedge derivative instruments	(6,335)
Total loss on derivative instruments	$ (27,392)

The amount of loss recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments.

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