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Note 4 - Operating Assets and Liabilities - Summary of Accounts Receivable (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Trade receivables $ 47,553 $ 41,947
Other receivables 17,148 16,847
Less: Allowance for credit losses (3,233) (2,541)
Total accounts receivable, net $ 61,468 $ 56,253