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Note 15 - Commitments and Contingencies - Allowance of Doubtful Accounts (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Balance at beginning of period $ 47 $ 473
Bad debt expense 0 5
Write-offs (23) (222)
Other adjustments 0 (1)
Balance at end of period $ 24 $ 255