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Equity Instruments - Warrants Issued in Conjunction with its Senior Convertible Debentures (Detail) - $ / shares	3 Months Ended	12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015
Number of Warrants Outstanding
Number of Warrants Outstanding, Beginning Balance	102,613
Number of Warrants Outstanding, Ending Balance	102,613	102,613
Warrants, Weighted Average Exercise Price
Weighted Average Exercise Price, Outstanding Beginning Balance	$ 4.53
Weighted Average Exercise Price, Outstanding Ending Balance	$ 4.53	$ 4.53
Weighted Average Remaining Contractual Life
Weighted Average Remaining Contractual Life, Warrants Outstanding	2 years 11 months 1 day	2 years 11 months 1 day

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- Definition

Class of warrant or rights weighted average remaining contractual term.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Options And Stock Appreciation Rights Weighted Average Remaining Contractual Term [Abstract]

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- Definition

Share Based Compensation Share Warrants Outstanding

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- Definition

Share Based Compensation Share Warrants Outstanding Weighted Average Exercise Price

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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