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Note 3 - Revenues - Allowance for Doubtful Accounts (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Balance, beginning of period $ 215 $ 160
Provision for expected credit losses (39) 46
Charge-offs and other (12) (29)
Balance, end of period $ 164 $ 177