Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - Additional Information (Details)

v3.19.1
Earnings Per Share - Additional Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Earnings Per Share [Abstract]    
Common stock dividends $ 503,294 $ 495,266
Common stock dividends per share $ 0.065 $ 0.065