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Interest Rate Swap Agreements - Summary of locations and amounts of (gains) losses in income (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Periodic change in fair value of interest rate swap agreements	$ 79,066	$ (251,408)	$ 122,628	$ (39,121)
Periodic settlement differentials included in interest expense	94,525	99,846	189,478	198,838
Losses (gains) in income, Total	$ 173,591	$ (151,562)	$ 312,106	$ 159,717

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Amount of periodic settlement differentials included in interest expense.

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Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 815



-SubTopic 10



-Section 50



-Paragraph 4A



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Amount of unrealized gain (loss) related to the fair value of interest rate derivatives designated as fair value hedging instruments, as offset by the gain (loss) on the hedged item to the extent that the fair value hedge is determined to be effective.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



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-SubTopic 10



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-Name Accounting Standards Codification



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