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Note 10 - Leases (Tables)

12 Months Ended

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

X

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Tabular disclosure of other information related to lease liabilities.

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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
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

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+ 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

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Tabular disclosure of lessor's underlying asset for which right to use has been conveyed to lessee under operating lease.

+ References

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-Section 50
-Paragraph 1
-Publisher FASB
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