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Note 13 - Dividend Restrictions (Details Textual) - Subsequent Event [Member]
1 Months Ended
Jan. 31, 2022
$ / shares
Common Stock, Dividends, Per Share, Declared (in dollars per share) $ 0.18
Dividends Payable, Date to be Paid Mar. 01, 2022
Dividends Payable, Date of Record Feb. 10, 2022