Organization and Summary of Significant Accounting Policies - Additional Information (Detail) |
3 Months Ended | 9 Months Ended | ||||
---|---|---|---|---|---|---|
Aug. 01, 2017 |
Sep. 30, 2017
USD ($)
|
Sep. 30, 2016
USD ($)
|
Sep. 30, 2017
USD ($)
|
Sep. 30, 2016
USD ($)
|
Dec. 31, 2016
USD ($)
|
|
Organization And Summary Of Significant Accounting Policies [Line Items] | ||||||
Reverse stock split of common stock, description | 11-for-1 reverse stock split | |||||
Reverse stock split of common stock conversion ratio | 11 | |||||
Grant revenue | $ 0 | $ 0 | $ 167,000 | $ 1,526,000 | ||
Accounts receivable | 0 | 0 | ||||
Accounts receivable | $ 38,000 | $ 38,000 | $ 0 | |||
Takeda Pharmaceuticals Inc | ||||||
Organization And Summary Of Significant Accounting Policies [Line Items] | ||||||
Accounts receivable | $ 0 | |||||
Revenue | Credit Risk | ||||||
Organization And Summary Of Significant Accounting Policies [Line Items] | ||||||
Percentage of total revenues | 100.00% | 74.00% |
X | ||||||||||
- Definition Organization and summary of significant accounting policies. No definition available.
|
X | ||||||||||
- Definition Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition Revenue earned during the period from non-repayable sum of money awarded to an entity to carry out a specific purpose as provided in grant agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|