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Note 2 - Summary of Significant Accounting Policies - Allowance for Doubtful Accounts (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Balance $ 231 $ 544
Allowance for credit losses 401 124
Write-offs (145) (437)
Balance $ 487 $ 231