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

Note 6 - Leases (Details Textual)

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Note 6 - Leases (Details Textual)
$ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
ft²
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Lessee, Operating Lease, Renewal Term (Year)   20 years    
Sale Leaseback Transaction, Gross Proceeds   $ 64,150 $ 0 $ 0
Sale and Leaseback Transaction, Gain (Loss), Net   42,298 (0) $ (0)
Operating Lease, Right-of-Use Asset   70,801 18,008  
Operating Lease, Liability   $ 72,179 $ 19,234  
Unrelated Third Party [Member]        
Sale Leaseback Transaction, Number of Properties Sold   7    
Sale Leaseback Transaction, Net Book Value   $ 21,852    
Sale Leaseback Transaction, Gross Proceeds   64,150    
Sale Leaseback Transaction, Transaction Costs $ 5,494 5,494    
Sale Leaseback Transaction, Net Proceeds   $ 58,656    
Area of Real Estate Property (Square Foot) | ft²   780,000    
Sale Leaseback Transaction, Lease Term (Year)   15 years    
Sale Leaseback Transaction, Number of Renewal Options   2    
Sale Leaseback Transaction, Term of Renewal Option (Year)   10 years    
Sale and Leaseback Transaction, Gain (Loss), Net $ 42,298 $ 42,298    
Operating Lease, Right-of-Use Asset   51,879    
Operating Lease, Liability   $ 51,879    
Unrelated Third Party [Member] | WISCONSIN        
Sale Leaseback Transaction, Number of Facilities   3    
Unrelated Third Party [Member] | Illinois, Iowa, Maine, and Michigan [Member]        
Sale Leaseback Transaction, Number of Facilities   4    
Minimum [Member]        
Lessee, Operating Lease, Term of Contract (Year)   1 year    
Maximum [Member]        
Lessee, Operating Lease, Term of Contract (Year)   15 years