Note 7 - Leases (Details Textual) - USD ($)	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021
Operating Lease, Weighted Average Remaining Lease Term (Year)	4 years
Operating Lease, Weighted Average Discount Rate, Percent	15.67%
General and Administrative Expense [Member]
Operating Lease, Expense	$ 159,996	$ 103,959
Research and Development Expense [Member]
Operating Lease, Expense	$ 187,795	$ 0
Lease Related to External Debt One [Member]
Lessee, Operating Lease, Discount Rate	3.00%
Lease Related to External Debt Three [Member]
Lessee, Operating Lease, Discount Rate	17.00%

Discount rate used by lessee to determine present value of operating lease payments.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)(3)
-URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980

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Namespace Prefix:	us-gaap_
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Period Type:	instant

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 4
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-URI https://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
Period Type:	duration

- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (g)(4)
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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
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-URI https://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971

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