Note 5 - Trade Accounts and Notes Receivable (Tables)

6 Months Ended

Mar. 31, 2024

Notes Tables

Schedule of Accounts Receivable [Table Text Block]

	March 31, 2024			September 30, 2023
Trade accounts receivable	$	16,907		$	20,282
Allowance for credit losses		(67	)		(125	)
Total		16,840			20,157
Less current portion		(15,330	)		(20,157	)
Non-current trade accounts receivable	$	1,510		$	—

Accounts Receivable, Allowance for Credit Loss [Table Text Block]

	Three Months Ended						Six Months Ended
	March 31, 2024			March 31, 2023			March 31, 2024			March 31, 2023
Allowance for credit losses:
Beginning of period		92			689			125			591
Provision for credit losses		12			98			55			384
Recoveries		(34	)		(81	)		(106	)		(247	)
Write-offs		—			—			(7	)		(6	)
Currency translation		(3	)		—			—			(16	)
End of period	$	67		$	706		$	67		$	706