Annual report [Section 13 and 15(d), not S-K Item 405]

Note 10 - Operating Lease (Details Textual)

v3.25.1
Note 10 - Operating Lease (Details Textual)
12 Months Ended
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Jun. 30, 2022
USD ($)
ft²
Operating Lease, Right-of-Use Asset $ 279,000 $ 354,000  
Operating Lease, Liability 315,000    
Operating Lease, Cost 104,000 104,000  
Variable Lease, Cost $ 89,000 $ 92,000  
Minneapolis, MN [Member]      
Area of Real Estate Property | ft²     6,000
Lessee, Operating Lease, Term of Contract (Month)     65 months
Operating Lease, Right-of-Use Asset     $ 446,000
Operating Lease, Liability     $ 446,000