Percentage of interest rate on notes receivable.

No definition available.

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- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

No definition available.

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- Definition

Period of time between issuance and maturity of notes receivable, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

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

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- Definition

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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- Definition

Amount of interest income from net investment in sales-type lease.

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Note 5 - Trade Accounts and Financing Receivables (Details Textual) - USD ($)		3 Months Ended	9 Months Ended
	Aug. 30, 2024	Jun. 30, 2025	Jun. 30, 2025	Sep. 30, 2024	Aug. 31, 2024
Financing Receivable, before Allowance for Credit Loss		$ 25,143,000	$ 25,143,000	$ 12,996,000
Financing Receivable, Allowance for Credit Loss		933,000	933,000	$ 900,000
Promissory Note for Sale of Product [Member]
Financing Receivable, before Allowance for Credit Loss					$ 9,400,000
Notes Receivable, Interest Rate, Stated Percentage					9.50%
Promissory Note [Member] \| Discontinued Operations, Disposed of by Sale [Member] \| Subsidiary, Oil and Gas Product Manufacturing Operations in the Russian Federation [Member]
Financing Receivable, before Allowance for Credit Loss	$ 3,500,000
Notes Receivable, Interest Rate, Stated Percentage	5.00%
Notes Receivable, Term (Year)	10 years
Notes Receivable, Periodic Payment	$ 37,000
Financing Receivable, Allowance for Credit Loss	$ 900,000
Wireless Seismic Equipment Customer [Member]
Sales-type Lease, Interest Income		$ 200,000	$ 500,000