Note 10 - Property, Plant and Equipment (Details Textual) $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 28, 2023 USD ($)	Sep. 30, 2024 USD ($) a	Sep. 30, 2023 USD ($)
Asset, Held-for-Sale, Not Part of Disposal Group, Current		$ 1,841	$ 0
Proceeds from Sale of Property, Plant, and Equipment		9	4,406
Depreciation		$ 3,500	$ 3,700
Property Utilized for Parking [Member]
Area of Land (Acre) | a		17.3
Asset, Held-for-Sale, Not Part of Disposal Group, Current		$ 1,800
Satellite Property [Member]
Proceeds from Sale of Property, Plant, and Equipment	$ 3,700
Payment of Closing Costs for Sale of Property	300
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	$ 1,300