COMMON STOCK AND EARNINGS PER SHARE - Summary of Common Stock and Earnings Per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Available to Common Shareholders:
Net Income	$ 296,172	$ 966,900	$ 25,371,379	$ 17,392,200
Weighted Average Shares Outstanding	5,491,181	5,513,327	5,516,989	5,548,644
Common Shares Applicable to Stock
Options Using the Treasury Stock Method	2,186	9,266	31,436	16,630
Total Shares Applicable to Diluted Earnings Per Share	5,493,367	5,522,593	5,548,425	5,565,274
Per Share Information:
Basic Net Income per Share (in dollars per share)	$ 0.05	$ 0.18	$ 4.60	$ 3.13
Diluted Net Income per Share (in dollars per share)	$ 0.05	$ 0.18	$ 4.57	$ 3.13