Note 13 - Related Party Transaction (Details Textual) - Vice President [Member] - Consulting Services [Member] |
3 Months Ended | 9 Months Ended |
|---|---|---|
|
Sep. 30, 2020
USD ($)
|
Sep. 30, 2020
USD ($)
|
|
| Accounts Payable, Related Parties, Current | $ 11,000 | $ 11,000 |
| Research and Development Expense [Member] | ||
| Related Party Transaction, Amounts of Transaction | $ 90,000 | $ 137,000 |
| X | ||||||||||
- Definition Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| 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
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| X | ||||||||||
- Details
|