Fair Value Considerations - Significant Assumption in Valuing Warrant Derivative Liability (Detail)	3 Months Ended
Sep. 30, 2015 $ / shares shares
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Equivalent term (years)	5 years
Warrant [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Volatility	75.00%
Equivalent term (years)	4 years 11 months 1 day
Risk-free interest rate	1.35%
Warrant [Member] \| Minimum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Exercise price	$ 1.51
Potential number of shares \| shares	141,000
Warrant [Member] \| Maximum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Exercise price	$ 1.95
Potential number of shares \| shares	189,000
Issuance Date [Member] \| Warrant [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Volatility	75.00%
Issuance Date [Member] \| Warrant [Member] \| Minimum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Exercise price	$ 1.51
Equivalent term (years)	5 years
Risk-free interest rate	1.54%
Potential number of shares \| shares	139,000
Issuance Date [Member] \| Warrant [Member] \| Maximum [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Exercise price	$ 1.95
Equivalent term (years)	5 years 1 month 10 days
Risk-free interest rate	1.74%
Potential number of shares \| shares	224,000

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(2))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Agreed upon price for the exchange of the underlying asset.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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Risk-free interest rate assumption used in valuing an instrument.

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