Note 12 - Stockholders' Equity (Tables)

12 Months Ended

Sep. 30, 2024

Notes Tables

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

				Unrealized
				Gains (Losses)
				on Available-			Gains (Losses)
	Currency			for-Sale			on Derivative			Pension
	Translation			Securities			asset			Liability
	Adjustments			Net of tax			Net of tax			Adjustments			Total
Balance at September 30, 2021	$	20,139		$	(1	)	$	-		$	(787	)	$	19,351
Other comprehensive income (loss) before reclassifications		(169,266	)		(10,908	)		93,020			412			(86,742	)
Amounts reclassified from accumulated other comprehensive income (loss)		(16,567	)		—			—			42			(16,525	)
Balance at September 30, 2022		(165,694	)		(10,909	)		93,020			(333	)		(83,916	)
Other comprehensive income (loss) before reclassifications		77,246			5,774			(61,533	)		(104	)		21,383
Amounts reclassified from accumulated other comprehensive income (loss)		—			—			—			107			107
Balance at September 30, 2023		(88,448	)		(5,135	)		31,487			(330	)		(62,426	)
Other comprehensive income (loss) before reclassifications		54,278			4,872			(10,019	)		(245	)		48,886
Amounts reclassified from accumulated other comprehensive income (loss)		—			—			—			76			76
Balance at September 30, 2024	$	(34,170	)	$	(263	)	$	21,468		$	(499	)	$	(13,464	)