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Note 15 - Commitments and Contingencies - Allowance of Doubtful Accounts (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Balance at beginning of period $ 47 $ 473
Bad debt expense 40 9
Write-offs 0 (429)
Other adjustments (10) (1)
Balance at end of period $ 77 $ 52