Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - Additional Information (Details)

v3.7.0.1
Earnings Per Share - Additional Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Earnings Per Share [Abstract]    
Common stock dividends $ 495,266 $ 482,090
Common stock dividends per share $ 0.065 $ 0.065