Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Subsequent Events (Details Textual)

v3.20.2
Note 11 - Subsequent Events (Details Textual) - $ / shares
 3 Months Ended
Nov. 02, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Mar. 31, 2019
Common Stock, Dividends, Per Share, Declared (in dollars per share)   $ 0.20 $ 0.20 $ 0.20 $ 0.24
Subsequent Event [Member]          
Common Stock, Dividends, Per Share, Declared (in dollars per share) $ 0.20