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Note 10 - Leases (Details Textual) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 | Dec. 31, 2021
Number of Operating Right of Use Asset Related to Leased Facility |  | 2 |  |
Accounts Receivable, after Allowance for Credit Loss, Current | $ 12,662 | $ 14,637 |  |
Equipment Expense | $ 6,200 | 10,900 |  |
Operating Lease Income Comprehensive Income Extensible List Not Disclosed [Flag] | true |  |  |
Lease Receivable [Member] |  |  |  |
Accounts Receivable, after Allowance for Credit Loss, Current | $ 1,000 | 1,000 |  |
Operating Lease, Lease Income | 6,300 | 19,300 |  |
Lessor, Operating Lease, Payment to be Received, Next Rolling 12 Months | 400 |  |  |
Sales-type Lease, Interest Income | 600 |  |  |
Land [Member] | Calgary, Alberta, Canada [Member] |  |  |  |
Lessor, Operating Lease, Term of Contract (Year) |  |  |  | 5 years
Land and Building [Member] | Calgary, Alberta, Canada and Bogotá, Colombia [Member] |  |  |  |
Number of Operating Right of Use Asset Related to Leased Facility |  |  | 2 |
Operating Lease, Lease Income | $ 300 | $ 300 |  |
Maximum [Member] | Equipment [Member] |  |  |  |
Lessor, Operating Lease, Term of Contract (Year) |  | 1 year |  |

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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
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- Definition Amount of lease payments to be received by lessor in next rolling twelve months following latest statement of financial position date for operating lease. For interim and annual periods when interim periods are reported on rolling approach, from latest statement of financial position date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479773/842-30-50-12 + Details
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- Definition Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479773/842-30-50-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-6A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479016/842-30-45-3 + Details
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