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Basis of Presentation - Additional Information (Detail)	Jun. 15, 2015 $ / shares	Sep. 30, 2015 $ / shares	Dec. 31, 2014 $ / shares
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Common stock, par value	$ 0.0001	$ 0.0001	$ 0.0001
Reverse stock split of common stock	0.4
Reverse Stock split	1-for-2.5 reverse stock split

X

- Definition

Face amount or stated value per share of common stock.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 210



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.5-02.29)



-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 02



-Paragraph 30



-Article 5

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- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section S99



-Paragraph 4



-Subparagraph (SAB TOPIC 4.C)



-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Stock Split



-URI http://asc.fasb.org/extlink&oid=6525746

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- Definition

Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section S99



-Paragraph 4



-Subparagraph (SAB TOPIC 4.C)



-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Staff Accounting Bulletin (SAB)



-Number Topic 4



-Section C

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