Note 6 - Stock Warrants - Summary of Warrants (Details) (Parentheticals)	Sep. 30, 2022
Warrant One [Member]
Maturity date	Jan. 09, 2023
Warrant Two [Member]
Maturity date	Jan. 28, 2025
Warrant Three [Member]
Maturity date	May 07, 2026

Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in YYYY-MM-DD format.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

Name:	us-gaap_WarrantsAndRightsOutstandingMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	instant