Note 1 - Basis of Presentation and Significant Accounting Policies - Investment in Sales-type Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Sep. 30, 2022
2023	$ 205
2024	171
2025	69
Gross investment in sales-type lease	445
Less: Unearned income	0
Total investment in sales-type lease	445
Current portion of total investment in sales-type lease	272	$ 281
Long-term portion of total investment in sales-type lease	173	$ 221
Net Investment in Lease, before Allowance for Credit Loss	$ 445

Amount, before allowance for credit loss, of net investment in sales-type and direct financing leases.

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Amount, before allowance for credit loss, of net investment in sales-type and direct financing leases, classified as current.

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Amount, before allowance for credit loss, of net investment in sales-type and direct financing leases, classified as noncurrent.

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Present value of lease payments not yet received by lessor and amount expected to be derived from underlying asset, following end of lease term guaranteed by lessee or other third party unrelated to lessor, from sales-type and direct financing leases.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted lease receivable in excess of discounted receivable for sales-type and direct financing leases.

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