Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - Additional Information (Details)

v3.21.2
Earnings Per Share - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Earnings Per Share [Abstract]        
Common stock dividends $ 696,060 $ 608,153 $ 1,915,591 $ 1,822,776
Common stock dividends per share $ 0.065 $ 0.065 $ 0.13 $ 0.13