v3.26.3
Note 1 - Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Dec. 31, 2024
Contract with Customer, Asset, after Allowance for Credit Loss $ 1,500 $ 700 $ 1,100 $ 700
Accounts Receivable, after Allowance for Credit Loss 191,700 151,800 150,400 141,600
Drivers Advances and Other Receivables Net Of Allowance 5,992 10,214    
Cash Surrender Value of Life Insurance $ 5,500 5,000    
Tractors [Member]        
Property, Plant and Equipment, Useful Life (Year) 5 years      
Tractors [Member] | Minimum [Member]        
Property, Plant and Equipment, Salvage Value, Percentage 0.00%      
Tractors [Member] | Maximum [Member]        
Property, Plant and Equipment, Salvage Value, Percentage 35.00%      
Refrigerated Trailers [Member]        
Property, Plant and Equipment, Useful Life (Year) 7 years      
Dry Van Trailers [Member]        
Property, Plant and Equipment, Useful Life (Year) 10 years      
Dry Van Trailers [Member] | Minimum [Member]        
Property, Plant and Equipment, Salvage Value, Percentage 20.00%      
Dry Van Trailers [Member] | Maximum [Member]        
Property, Plant and Equipment, Salvage Value, Percentage 25.00%      
Receivables from Insurers [Member]        
Drivers Advances and Other Receivables Net Of Allowance $ 6,000 $ 10,200 $ 4,800 $ 4,000