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Note 7 - Income Tax (Details Textual)
$ in Thousands
6 Months Ended
Jun. 30, 2022
USD ($)
Unrecognized Tax Benefits, Ending Balance $ 0
Open Tax Year 2017 2018 2019 2020
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit $ 0