Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Leases (Details Textual)

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Note 7 - Leases (Details Textual)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
USD ($)
ft²
Sep. 30, 2023
USD ($)
Sep. 30, 2024
USD ($)
ft²
Sep. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
Lessee, Operating Lease, Renewal Term (Year) 20 years   20 years    
Sale Leaseback Transaction, Gross Proceeds     $ 64,150 $ 0  
Sale and Leaseback Transaction, Gain (Loss), Net $ 42,298 $ (0) 42,298 $ (0)  
Operating Lease, Right-of-Use Asset 69,295   69,295   $ 18,008
Operating Lease, Liability 70,650   $ 70,650   $ 19,234
Unrelated Third Party [Member]          
Sale Leaseback Transaction, Number of Properties Sold     7    
Sale Leaseback Transaction, Net Book Value $ 21,852   $ 21,852    
Sale Leaseback Transaction, Gross Proceeds     64,150    
Sale Leaseback Transaction, Transaction Costs     5,494    
Sale Leaseback Transaction, Net Proceeds     $ 58,656    
Area of Real Estate Property (Square Foot) | ft² 780,000   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    
Operating Lease, Right-of-Use Asset $ 51,879   51,879    
Operating Lease, Liability $ 51,879   $ 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   1 year    
Maximum [Member]          
Lessee, Operating Lease, Term of Contract (Year) 15 years   15 years