Quarterly report pursuant to Section 13 or 15(d)

Note 14 - Leases (Details Textual)

v3.22.4
Note 14 - Leases (Details Textual)
3 Months Ended 6 Months Ended
Jul. 31, 2021
USD ($)
ft²
Dec. 31, 2022
USD ($)
ft²
Dec. 31, 2021
USD ($)
Dec. 31, 2022
USD ($)
ft²
Nov. 19, 2021
ft²
Jan. 01, 2015
Operating Lease, Weighted Average Remaining Lease Term   3 years 9 months 14 days 2 years 9 months 25 days 3 years 9 months 14 days    
Operating Lease, Weighted Average Discount Rate, Percent   3.22% 3.41% 3.22%    
Operating Lease, Payments | $   $ 946,000 $ 312,000      
7050 Winnetka Avenue North, Brooklyn Park, Minnesota [Member]            
Area of Real Estate Property   85,000   85,000    
Lessee, Operating Lease, Term of Contract (Year)           10 years 2 months 1 day
Tijuana, Mexico 3 [Member]            
Area of Real Estate Property 318,000          
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract 7 years          
Lessee, Operating Lease, Number of Options to Renew 2          
Lessee, Operating Lease, Lease Not yet Commenced, Renewal Term 5 years          
Operating Lease, Monthly Payment | $ $ 162,000          
Operating Lease, Payments, Annual Increase, Percentage 2.00%          
Tijuana, Mexico 3 [Member] | Lease Mandatory Contractual Term [Member]            
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract 5 years          
Brooklyn Part, MN [Member]            
Area of Real Estate Property         105,000  
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract         5 years  
Lessee, Operating Lease, Lease Not yet Commenced, Renewal Term         5 years  
Oulu, Finland [Member]            
Area of Real Estate Property   25,000   25,000    
Operating Lease, Monthly Payment | $       $ 40,000