Note 13 - Related Party Transaction (Details Textual) - Vice President [Member] - Consulting Services [Member] |
12 Months Ended |
|---|---|
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Dec. 31, 2020
USD ($)
| |
| Accounts Payable, Related Parties, Current | $ 33,000 |
| Research and Development Expense [Member] | |
| Related Party Transaction, Amounts of Transaction | $ 235,000 |
| 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
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| X | ||||||||||
- Definition Amount of transactions with related party during the financial reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
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| X | ||||||||||
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