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Note 3 - Revenues - Allowance for Doubtful Accounts (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Balance, beginning of period $ 160 $ 191
Provision for expected credit losses 1 (3)
Charge-offs and other (34) (21)
Balance, end of period $ 127 $ 167