Note 6 - Contingent Liability - Contingent Liability (Details)	12 Months Ended
	Sep. 30, 2022
Earnout Shares for Revenue Between $1 and $20,000,000 [Member]
Business Acquisition, Contingent Consideration, Shares Issued Per Aggregate Net Revenue Ratio	0.190625
Earnout Shares for Revenue Between $20,000,001 and $60,000,000 [Member]
Business Acquisition, Contingent Consideration, Shares Issued Per Aggregate Net Revenue Ratio	0.0953125
Earnout Shares for Revenue Between $60,000,001 and $140,000,000 [Member]
Business Acquisition, Contingent Consideration, Shares Issued Per Aggregate Net Revenue Ratio	0.04765625
Earnout Shares for Revenue Between $140,000,001 and $300,000,000 [Member]
Business Acquisition, Contingent Consideration, Shares Issued Per Aggregate Net Revenue Ratio	0.23828125