COMMON STOCK AND EARNINGS PER SHARE - Summary of Common Stock and Earnings Per Share (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Available to Common Shareholders:
Net Income	$ 6,468,099	$ 10,912,299
Weighted Average Shares Outstanding	5,345,870	5,530,864
Common Shares Applicable to Stock
Options Using the Treasury Stock Method		31,036
Total Shares Applicable to Diluted Earnings Per Share	5,345,870	5,561,900
Basic
Net Income from Continuing Operations (in dollars per share)	$ 1.24	$ 1.99
Net Loss from Discontinued Operations (Net of Tax) (in dollars per share)	(0.03)	(0.02)
Net Income (in dollars per share)	1.21	1.97
Diluted
Net Income from Continuing Operations (in dollars per share)	1.24	1.98
Net Loss from Discontinued Operations (Net of Tax) (in dollars per share)	(0.03)	(0.02)
Net Income (in dollars per share)	$ 1.21	$ 1.96