Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Leases (Details Textual)

v3.22.2
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