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v3.23.1

Note 8 - Leases (Details Textual) | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2023 USD ($) | Mar. 31, 2022 USD ($) | Mar. 31, 2023 USD ($) | Mar. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2021
Number of Operating Right of Use Asset Related to Leased Facility | 2 |  | 2 |  |  |
Accounts Receivable, after Allowance for Credit Loss, Current | $ 20,925,000 |  | $ 20,925,000 |  | $ 12,661,000 |
Lease Receivable [Member] |  |  |  |  |  |
Operating Lease, Lease Income | 13,600,000 | $ 3,100,000 | 25,100,000 | $ 8,000,000.0 |  |
Lessor, Operating Lease, Payment to be Received, Next Rolling 12 Months | 21,100,000 |  | 21,100,000 |  |  |
Equipment [Member] | Lease Receivable [Member] |  |  |  |  |  |
Accounts Receivable, after Allowance for Credit Loss, Current | $ 9,700,000 |  | $ 9,700,000 |  |  |
Land [Member] | Calgary, Alberta, Canada [Member] |  |  |  |  |  |
Number of Operating Right of Use Asset Related to Leased Facility | 2 |  | 2 |  |  |
Lessor, Operating Lease, Term of Contract (Year) |  |  |  |  |  | 5 years
Operating Lease, Lease Income | $ 52,000 | $ 51,000 | $ 98,000 | $ 81,000 |  |
Maximum [Member] | Equipment [Member] |  |  |  |  |  |
Lessor, Operating Lease, Term of Contract (Year) | 1 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/2003/role/disclosureRef -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 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481990/310-10-45-9 + Details
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