Note 18 - Segment and Geographical Information - Schedule of Long-lived Assets by Geographic Area (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Sep. 30, 2023
Property, plant, and equipment, net	$ 202,654	$ 205,744
UNITED STATES
Property, plant, and equipment, net	75,242	78,533
CHINA
Property, plant, and equipment, net	52,826	53,146
Europe [Member]
Property, plant, and equipment, net	71,690	70,654
Asia Pacific and Other [Member]
Property, plant, and equipment, net	$ 2,896	$ 3,411