License, Clinical Trial and Sponsored Research Agreements (License Agreements) (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
|
| Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] | ||
| Research and development for licenses acquired | $ 0 | $ 250 |
| City of Hope National Medical Center ("COH") [Member] | License Agreements [Member] | ||
| Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] | ||
| Research and development for licenses acquired | 0 | 250 |
| HER2 Product or Process [Member] | City of Hope National Medical Center ("COH") [Member] | License Agreements [Member] | ||
| Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] | ||
| Research and development for licenses acquired | $ 0 | $ 250 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The amount of the write-off for research and development assets that were acquired in a transaction other than a business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|