Note 12 - Related Party Transaction (Details Textual) |
6 Months Ended |
|---|---|
|
Jun. 30, 2021
USD ($)
| |
| Vice President [Member] | Consulting Services [Member] | Research and Development Expense [Member] | |
| Related Party Transaction, Amounts of Transaction | $ 149,000 |
| X | ||||||||||
- Definition Amount of transactions with related party during the financial reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|