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Note 12 - Revenues - Allowance for Doubtful Accounts (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Balance, beginning of period $ 136 $ 227
Bad debt expense (credit) 62 (4)
Charge-offs and other (7) (87)
Balance, end of period $ 191 $ 136