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Note 10 - Leases (Tables) | 12 Months Ended
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Sep. 30, 2025
Notes Tables |
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] |
For fiscal years ending September 30, |  |  |  |
2026 |  | $ | 465 |
2027 |  |  | 483 |
2028 |  |  | 90 |
Future minimum lease payments |  | $ | 1,038 |
Less interest |  |  | (64 | )
Present value of minimum lease payments |  | $ | 974 |
Less current portion |  |  | (420 | )
Long-term portion |  | $ | 554 |
Lease, Cost [Table Text Block] |
|  | YEAR ENDED SEPTEMBER 30, |
|  | 2025 |  |  | 2024 |
Right-of-use operating lease costs |  | $ | 198 |  |  | $ | 271 |
Short-term lease costs |  |  | 121 |  |  |  | 123 |
Total |  | $ | 319 |  |  | $ | 394 |
Summary of Other Information Related to Lease Liabilities [Table Text Block] |
|  | YEAR ENDED SEPTEMBER 30, |
|  | 2025 |  |  | 2024 |
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |  |  |  |  |
Operating cash flows from operating leases |  | $ | 126 |  |  | $ | 278 |
Weighted average remaining lease term |  | 2.9 years |  |  | 3.4 years |
Weighted average discount rate |  |  | 5.93 | % |  |  | 3.25 | %
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Table Text Block] |
|  | AS OF SEPTEMBER 30, |
|  | 2025 |  |  | 2024 |
Rental equipment, primarily wireless recording equipment |  | $ | 45,289 |  |  | $ | 63,111 |
Accumulated depreciation and impairment |  |  | (37,169 | ) |  |  | (48,925 | )
|  | $ | 8,120 |  |  | $ | 14,186 |
Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block] |
For fiscal years ending September 30, |  |  |  |
2026 |  | $ | 132 |
2027 |  |  | 11 |
|  | $ | 143 |

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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