Note 7 - Rental Equipment (Details Textual) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Sep. 30, 2025 |
|
| Equipment Expense | $ 1.3 | $ 1.4 | $ 3.7 | $ 4.8 | |
| Lease Receivable [Member] | |||||
| Lessor, Operating Lease, Payment to be Received, Next Rolling 12 Months | 1.2 | 1.2 | |||
| Equipment [Member] | |||||
| Accounts Receivable, after Allowance for Credit Loss, Current | $ 0.9 | $ 0.9 | $ 1.0 | ||
| Maximum [Member] | Equipment [Member] | |||||
| Lessor, Operating Lease, Term of Contract (Year) | 1 year | 1 year | |||