STOCK-BASED COMPENSATION - Non-Qualified Stock Option Non-Vested Award Activity (Details) - Amended and Restated 2010 Equity Incentive Plan - Stock Option Awards - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Non-Vested Shares
Outstanding (in shares)	17,000	36,900	88,260
Granted (in shares)			40,000
Vested (in shares)	(17,000)	(19,900)	(51,360)
Forfeited (in shares)			(40,000)
Outstanding (in shares)		17,000	36,900
Stock-based compensation
Fair Value of Shares Vested	$ 952,068	$ 1,094,066	$ 2,643,088
Total intrinsic value of options exercised (in dollars)	349,000
Unrecognized compensation cost (in dollars)	$ 0