Fair Value Measurements - Additional Information (Detail) (USD $)	Sep. 30, 2014	Dec. 17, 2013
Fair Value Disclosure [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 2.00	$ 2.66
Series A Preferred Stock [Member]
Fair Value Disclosure [Line Items]
Debt instrument convertible threshold stock price	$ 1.14
Purchase of warrants to common stock	$ 238,412
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 3.04

Exercise price per share or per unit of warrants or rights outstanding.

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)(4))

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

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