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Note 13 - Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Unrecognized tax benefits $ 4,261 $ 3,276 $ 1,968
Gross decreases - tax positions in a prior period (2,113) 0 0
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions 374 985 1,308
Unrecognized tax benefits $ 2,522 $ 4,261 $ 3,276