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Note 9 - Accounts Receivable, Net - Movement of Expected Credit Losses (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Balance at beginning of year $ 6,917 $ 6,313 $ 6,315
Additions - Acquired in the Merger 992 0 0
Additions - Charged to expense 1,527 965 571
Deductions (44) (361) (573)
Balance at end of year $ 9,392 $ 6,917 $ 6,313