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Subsequent Events - Additional Information (Detail) (USD $)
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3 Months Ended | 1 Months Ended | 15 Months Ended | 1 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Aug. 31, 2013
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May 31, 2013
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Sep. 05, 2013
Subsequent Event
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Oct. 15, 2013
Subsequent Event
Convertible Note One
Note
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Oct. 15, 2013
Subsequent Event
Convertible Note Two
Note
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Oct. 15, 2013
Subsequent Event
Convertible Note Three
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Oct. 15, 2013
Subsequent Event
Convertible Note Four
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Sep. 30, 2013
Subsequent Event
Private Placement
Investors
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Sep. 30, 2013
Subsequent Event
Private Placement
Private Placement Issuance Scenario One
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Sep. 30, 2013
Subsequent Event
Private Placement
Private Placement Issuance Scenario Two
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Sep. 30, 2013
Subsequent Event
Private Placement
Private Placement Issuance Scenario Six
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Sep. 05, 2013
Subsequent Event
Maximum
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Sep. 05, 2013
Subsequent Event
Minimum
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| Subsequent Event [Line Items] | |||||||||||||
| Stock options , shares granted | 1,123,072 | 305,000 | |||||||||||
| Stock options, exercise price | $ 0.75 | ||||||||||||
| Stock options, termination date | 2018-09-04 | ||||||||||||
| Stock options, number of shares vested on date of issuance | 50,000 | ||||||||||||
| Stock options, number of shares vested monthly after initial issuance | 15,000 | ||||||||||||
| Consulting agreement term | 18 months | 6 months | |||||||||||
| Units sold at private sale, number of units sold | 5,300,771 | ||||||||||||
| Units sold at private sale, per unit price | $ 1.30 | ||||||||||||
| Units sold at private sale, gross proceeds | $ 6,911,024 | ||||||||||||
| Units sold at private sale, number of purchasers | 91 | ||||||||||||
| Shares of common stock per each unit sold | 2 | 10,601,546 | |||||||||||
| Number of stock purchase warrants per each unit sold | 1 | ||||||||||||
| Number of stock purchase warrants per each unit sold | 5,300,773 | ||||||||||||
| Exercisable warrants, exercise price | 0.75 | 0.75 | 0.75 | ||||||||||
| Exercisable warrants, expire period | 5 years | ||||||||||||
| Number of notes converted | 6 | 2 | |||||||||||
| Principal amount of notes | 920,000 | 567,000 | 825,000 | 380,000 | 200,000 | 9,000 | |||||||
| Aggregate principal amount plus accrued but unpaid interest | $ 6,351 | $ 884 | |||||||||||
| Convertible note conversion price per share | $ 0.65 | $ 0.75 | $ 0.45 | ||||||||||
| Common stock issued | 594,384 | 266,666 | 21,963 | ||||||||||
| warrants to purchase shares of common stock | 292,307 | ||||||||||||