Note 11 - Related Parties - Related Party Expenses (Details) - USD ($)	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Related party transactions	$ 61,811	$ 44,924
Consulting Fees [Member]
Related party transactions	45,000	0
Selling, General and Administrative Expenses [Member]
Related party transactions	15,369	27,493
Share-based Compensation [Member]
Related party transactions	$ 1,442	$ 17,431

Amount of transactions with related party during the financial reporting period.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-3

Name:	us-gaap_RelatedPartyTransactionAmountsOfTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration