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Note 12 - Leases (Details Textual) |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Jul. 31, 2021 USD ($) ft² | Jun. 30, 2022 USD ($) ft² | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) ft² | Jun. 30, 2021 USD ($) | Nov. 19, 2021 ft²
Operating Lease, Weighted Average Remaining Lease Term (Year) |  | 4 years 5 months 19 days | 3 years 1 month 2 days | 4 years 5 months 19 days | 3 years 1 month 2 days |
Operating Lease, Weighted Average Discount Rate, Percent |  | 3.05% | 3.41% | 3.05% | 3.41% |
Operating Lease, Payments | $ |  | $ 617,000 | $ 243,000 | $ 1,167,000 | $ 723,000 |
7050 Winnetka Avenue North, Brooklyn Park, Minnesota [Member] |  |  |  |  |  |
Area of Real Estate Property (Square Foot) |  | 85,000 |  | 85,000 |  |
Lessee, Operating Lease, Term of Contract (Year) |  | 10 years 2 months 1 day |  | 10 years 2 months 1 day |  |
Tijuana, Mexico 3 [Member] |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | 318,000 |  |  |  |  |
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract (Year) | 7 years |  |  |  |  |
Lessee, Operating Lease, Number of Options to Renew | 2 |  |  |  |  |
Lessee, Operating Lease, Lease Not yet Commenced, Renewal Term (Year) | 5 years |  |  |  |  |
Operating Lease, Monthly Payment | $ | $ 162,000 |  |  |  |  |
Operating Lease, Payments, Increase, Percentage | 2.00% |  |  |  |  |
Tijuana, Mexico 3 [Member] | Lease Mandatory Contractual Term [Member] |  |  |  |  |  |
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract (Year) | 5 years |  |  |  |  |
Brooklyn Part, MN [Member] |  |  |  |  |  |
Area of Real Estate Property (Square Foot) |  |  |  |  |  | 105,000
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract (Year) |  |  |  |  |  | 5 years
Lessee, Operating Lease, Number of Options to Renew |  |  |  |  |  | 5

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