Note 9 - Goodwill and Other Intangible Assets - Summary of Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2018	Sep. 30, 2018
Amortizable intangible assets:
Amortizable intangible assets	$ 2,013	$ 138
Less accumulated amortization	(1,210)	(77)
Amortizable intangible assets, net	803	61
Trademark	389	389
Total other intangibles, net	1,192	450
Goodwill	5,198	5,198
Total goodwill and other intangibles, net	6,390	5,648
Other Intangible Assets [Member]
Amortizable intangible assets:
Amortizable intangible assets	$ 2,013	$ 138
Other Intangible Assets [Member] | Minimum [Member]
Amortizable intangible assets:
Intangible assets useful life (Year)	182 days
Other Intangible Assets [Member] | Maximum [Member]
Amortizable intangible assets:
Intangible assets useful life (Year)	3 years