Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Subsequent Event (Details Textual)

v3.23.2
Note 12 - Subsequent Event (Details Textual) - $ / shares
 3 Months Ended 6 Months Ended
Jul. 31, 2023
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
Common Stock, Dividends, Per Share, Declared (in dollars per share)   $ 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