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Note P - Acquisition of Metropolitan Trucking (Details Textual) - Metropolitan Trucking Inc and Related Entities [Member] - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 14, 2022
Jun. 30, 2022
Jun. 30, 2022
Business Combination, Consideration Transferred, Total $ 79,900    
Payments to Acquire Businesses, Gross 64,317    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-Term Debt 12,627    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable $ 2,915    
Acquired Business As a Percent of Total Assets   12.60% 12.60%
Acquired Business As a Percent of Operating Revenue   2.60% 1.30%
Business Combination, Acquisition Related Costs   $ 400 $ 400