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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Cash dividend declared and paid per share (in dollars per share) $ 0.40 $ 0.30 $ 0.80 $ 0.58