Note 9 - Goodwill and Other Intangible Assets - Summary of Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands		6 Months Ended
		Mar. 31, 2022	Sep. 30, 2021
Less accumulated amortization		$ (3,446)	$ (3,139)
Amortizable intangible assets, net		754	615
Other intangibles in process		6,657	5,507
Trademark		389	389
Deferred financing costs, net	[1]	47	59
Total other intangibles, net		7,847	6,570
Goodwill		5,198	5,198
Total goodwill and other intangibles, net		13,045	11,768
Other Intangible Assets [Member]
Amortizable intangible assets		$ 4,200	$ 3,754
Other Intangible Assets [Member] | Minimum [Member]
Intangible assets useful life (Year)		6 months
Other Intangible Assets [Member] | Maximum [Member]
Intangible assets useful life (Year)		3 years

[1] Certain prior year amounts have been reclassified for consistency with current year presentation.