Note 7 - Commitments and Contingencies - Other Information (Details) - USD ($)	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Operating cash flows - operating leases	$ 208,369	$ 98,448
Right-of-use assets obtained in exchange for operating lease liabilities	$ 385,682	$ 0
Weighted-average remaining lease term – operating leases (Year)	3 years 3 months 18 days	1 year 7 months 6 days
Weighted-average discount rate – operating leases	14.00%	14.20%

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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

+ References

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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
-Topic 842
-SubTopic 20
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-Section 55
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-URI https://asc.fasb.org//1943274/2147479589/842-20-55-53

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- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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