Annual report pursuant to Section 13 and 15(d)

Note 14 - Subsequent Event (Details Textual)

v3.22.0.1
Note 14 - Subsequent Event (Details Textual) - $ / shares
3 Months Ended
Feb. 07, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Common Stock, Dividends, Per Share, Declared (in dollars per share)   $ 0.20 $ 0.20 $ 0.20 $ 0.20 $ 0.20 $ 0.20 $ 0.20 $ 0.20
Subsequent Event [Member]                  
Common Stock, Dividends, Per Share, Declared (in dollars per share) $ 0.20