Significant Accounting Policies - Additional Information (Detail) |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
|
Apr. 20, 2015
USD ($)
|
Jun. 30, 2015
USD ($)
|
Jun. 30, 2014
USD ($)
|
Jun. 30, 2015
USD ($)
Segment
|
Jun. 30, 2014
USD ($)
|
Dec. 31, 2014
USD ($)
|
|
| Significant Accounting Policies [Line Items] | ||||||
| Marketable investments | $ 0 | $ 0 | $ 0 | |||
| Restricted cash | 13,730 | $ 13,730 | 13,728 | |||
| Estimated useful life of all property and equipment | 3 years | |||||
| Amount received upon execution of award agreement | $ 1,250,000 | |||||
| Total potential milestone payments | 3,750,000 | |||||
| Amortization of future milestone payments | $ 1,250,000 | $ 1,250,000 | ||||
| Operating segments | Segment | 1 | |||||
| Valuation allowance | 100.00% | |||||
| Uncertain tax position | 0 | $ 0 | $ 0 | |||
| Impairment charges | $ 0 | $ 0 | $ 0 | $ 0 | ||
| Maximum [Member] | ||||||
| Significant Accounting Policies [Line Items] | ||||||
| Cash and cash equivalents maturity period | 3 months | |||||
| Minimum [Member] | ||||||
| Significant Accounting Policies [Line Items] | ||||||
| Marketable investments maturity period | 3 months | |||||
| X | ||||||||||
- Definition Cash and cash equivalents maturity period. No definition available.
|
| X | ||||||||||
- Definition Deferred Tax Assets Valuation Allowance Percentage No definition available.
|
| X | ||||||||||
- Definition Marketable Securities Maturity Period No definition available.
|
| X | ||||||||||
- Definition Potential Future Milestone Payments No definition available.
|
| X | ||||||||||
- Definition Significant Accounting Policies [Line Items] No definition available.
|
| X | ||||||||||
- Definition The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The current portion of the amount recognized for uncertain tax positions as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. No definition available.
|
| X | ||||||||||
- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
|
| X | ||||||||||
- Definition Cash and equivalents whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of consideration recognized during the period for the milestone or milestones. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|