Note 14 - Earnings Per Share (Details Textual)	9 Months Ended
	Jun. 30, 2023 shares
Share-Based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	94,948
Series A Cumulative Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	185,223
A360 Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	40,404
Commitment Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	283,593