Note 8 - Leases (Tables)

12 Months Ended

Sep. 30, 2023

Notes Tables

Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]

For fiscal years ending September 30,
2024		278
2025		186
2026		130
2027		134
2028		91
Future minimum lease payments	$	819
Less interest		(50	)
Present value of minimum lease payments	$	769
Less current portion		(257	)
Long-term portion	$	512

Lease, Cost [Table Text Block]

	YEAR ENDED SEPTEMBER 30,
	2023		2022
Right-of-use operating lease costs	$	272	$	272
Short-term lease costs		220		190
Total	$	492	$	462

Summary of Other Information Related to Lease Liabilities [Table Text Block]

	YEAR ENDED SEPTEMBER 30,
	2023			2022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	270		$	262
Weighted average remaining lease term	3.9 years			4.7 years
Weighted average discount rate		3.25	%		3.25	%

Property, Plant, and Equipment, Lessor Asset under Operating Lease [Table Text Block]

	AS OF SEPTEMBER 30,
	2023			2022
Rental equipment, primarily wireless recording equipment	$	82,926		$	83,153
Accumulated depreciation and impairment		(61,339	)		(54,954	)
	$	21,587		$	28,199

Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block]

For fiscal years ending September 30,
2024		128
2025		131
2026		132
2027		11
	$	402