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Note 5 - Trade Accounts and Financing Receivables | 9 Months Ended
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Jun. 30, 2025
Notes to Financial Statements |
Loans, Notes, Trade and Other Receivables Disclosure [Text Block] | 5. Trade Accounts and Financing Receivables Trade accounts receivable, net, reflected in the following table (in thousands):
|  | June 30, 2025 |  |  | September 30, 2024 |
Trade accounts receivable |  | $ | 13,692 |  |  | $ | 16,151 |
Allowance for credit losses |  |  | (24 | ) |  |  | (4 | )
Total |  |  | 13,668 |  |  |  | 16,147 |
Less current portion |  |  | (13,668 | ) |  |  | (14,637 | )
Non-current trade accounts receivable |  | $ | — |  |  | $ | 1,510 |
The Company determines the allowance for credit losses through a review of several factors, including historical collection experience, customer credit worthiness, current aging of customer accounts and current financial conditions of its customers. Trade accounts receivable balances are charged off against the allowance whenever it is probable that the receivable balance will not be recoverable. Allowance for credit losses related to trade accounts receivable are reflected in the following table (in thousands):
|  | Three Months Ended |  |  | Nine Months Ended |
|  | June 30, 2025 |  |  | June 30, 2024 |  |  | June 30, 2025 |  |  | June 30, 2024 |
Allowance for credit losses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning of period |  | $ | 21 |  |  | $ | 67 |  |  | $ | 4 |  |  | $ | 125 |
Provision for credit losses |  |  | 4 |  |  |  | 5 |  |  |  | 24 |  |  |  | 60 |
Recoveries |  |  | (3 | ) |  |  | (38 | ) |  |  | (3 | ) |  |  | (144 | )
Charge-offs, net |  |  | 2 |  |  |  | — |  |  |  | (1 | ) |  |  | (7 | )
Currency translation |  |  | — |  |  |  | 1 |  |  |  | — |  |  |  | 1 |
End of period |  | $ | 24 |  |  | $ | 35 |  |  | $ | 24 |  |  | $ | 35 |
Financing receivables, net, are reflected in the following table (in thousands):
|  | June 30, 2025 |  |  | September 30, 2024 |
Promissory notes |  | $ | 13,087 |  |  | $ | 12,996 |
Sales-type lease |  |  | 12,056 |  |  |  | — |
Total financing receivables |  |  | 25,143 |  |  |  | 12,996 |
Discount to fair value and unearned income |  |  | (933 | ) |  |  | (900 | )
Total financing receivables, net |  |  | 24,210 |  |  |  | 12,096 |
Less current portion |  |  | (18,640 | ) |  |  | (7,231 | )
Non-current financing receivables |  | $ | 5,570 |  |  | $ | 4,865 |
In November 2024, the Company entered into a sales-type lease with a customer on wireless seismic equipment from its rental fleet. The lease matures in October 2025. During the three and nine months ended June 30, 2025 interest income of $0.2 million and $0.5 million, respectively, was recognized on the lease. The ownership of the equipment will transfer to the customer at the end of the lease term. In August 2024, the Company entered into a $9.4 million promissory note with a customer related to a product sale. The note bears interest at 9.5% per annum. Pursuant to an amendment in the first quarter of fiscal year 2025, the maturity of the note was extended from December 2025 to June 2026. Pursuant to an amendment in the second quarter of fiscal year 2025, the maturity of the note was further extended to November 2026. The note is collateralized by the product sold. In August 2024, the Company entered into a $3.5 million promissory note with the buyer of its Russian subsidiary. The note bears interest at 5% per annum and is for a 10-year term. Principal and interest payments of $37,000 are due monthly. Based on a fair value analysis performed at the date of sale, a discount to fair value of $0.9 million was placed on the note. Interest income on the amortization of the discount is recognized under the effective interest method. Credit quality indicators used for the financing receivables consisted of historical collection experience, internal credit risk grades and collateral. The Company determined the allowance for credit losses through a review of several factors, including historical collection experience, customer credit worthiness, current aging of customer accounts and current financial conditions of its customers.

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- Definition The entire disclosure for claims held for amounts due to entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/310-10/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482925/835-30-45-2 + Details
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