Note 4 - Trade Accounts and Financing Receivables - Schedule of Notes Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Jan. 31, 2026	Sep. 30, 2025
Financing Receivable, before Allowance for Credit Loss	$ 22,271		$ 24,451
Discount to fair value and unearned income	(786)		(914)
Total financing receivables, net	21,485		23,537
Less current portion	(10,724)		(15,347)
Non-current financing receivables	10,761		8,190
Promissory Notes, Matures January 2027 [Member]
Financing Receivable, before Allowance for Credit Loss	21,296	$ 300	19,149
Sales Type Lease [Member]
Financing Receivable, before Allowance for Credit Loss	$ 975		$ 5,302

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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+ References + Details