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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parentheticals) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Dividends paid, per share (in dollars per share) $ 0.16 $ 0.16 $ 0.16 $ 0.16 $ 0.16 $ 0.16
Proceeds from issuance of common stock, issuance costs           $ 9,315