Note 9 - Related Party Transactions (Details Textual) - Moores Cancer Center at University of California San Diego [Member] - USD ($) |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Mar. 31, 2018 |
|
| Extension for Services Agreement, Amount, Related Parties | $ 300,000 | ||
| us-gaap_ResearchAndDevelopmentExpenseMember | |||
| Related Party Transaction, Amounts of Transaction | $ 143,000 | $ 122,000 | |
| X | ||||||||||
- Definition The amount of extension approved for a related party services agreement. No definition available.
|
| X | ||||||||||
- Definition Amount of transactions with related party during the financial reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|