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Stock-Based Compensation - Summary of Changes in Unvested Options (Detail)	3 Months Ended
	Sep. 30, 2015 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Granted | shares	105,000
Weighted-average exercise price per share, Beginning balance	$ 2.49
Weighted-average exercise price per share, Granted	0.43
Weighted-average exercise price per share, Cancelled	1.39
Weighted-average exercise price per share, Ending balance	$ 2.44
Unvested stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, Beginning balance | shares	2,490,000
Number of options, Granted | shares	105,000
Number of options, Vested | shares	0
Number of options, Cancelled | shares	(75,000)
Number of options, Ending balance | shares	2,520,000
Weighted-average exercise price per share, Beginning balance	$ 0.70
Weighted-average exercise price per share, Granted	0.43
Weighted-average exercise price per share, Vested	0
Weighted-average exercise price per share, Cancelled	0.71
Weighted-average exercise price per share, Ending balance	0.69
Weighted-average grant date fair value per option, Beginning balance	0.46
Weighted-average grant date fair value per option, Granted	0.28
Weighted-average grant date fair value per option, Vested	0
Weighted-average grant date fair value per option, Cancelled	0.49
Weighted-average grant date fair value per option, Ending balance	$ 0.45

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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.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 718



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (d)(1)



-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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-SubTopic 10



-Section 50



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