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Note 4 - Fair Value Measurements - Summary of Financial Assets and Liabilities Measured At Fair Value On a Recurring Basis (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Non-current accounts receivable, net $ 10,195 $ 11,531
Finance lease liabilities 14,264 16,919
Deferred compensation plan   18,857
Deferred compensation plan   9,339
Fair Value, Inputs, Level 1 [Member]    
Non-current accounts receivable, net 0 0
Finance lease liabilities 0 0
Deferred compensation plan   0
Deferred compensation plan   0
Fair Value, Inputs, Level 2 [Member]    
Non-current accounts receivable, net 10,195 11,531
Finance lease liabilities 14,264 16,919
Deferred compensation plan   18,857
Deferred compensation plan   9,339
Fair Value, Inputs, Level 3 [Member]    
Non-current accounts receivable, net 0 0
Finance lease liabilities $ 0 0
Deferred compensation plan   0
Deferred compensation plan   $ 0