PREFERRED STOCK AND TEMPORARY EQUITY - Schedule of Initial BCF of Series B Preferred Stock Determined by Calculating the Intrinsic Value of Conversion Feature (Details) - USD ($)	Dec. 31, 2019	May 10, 2016	Jun. 24, 2015
Class of Stock [Line Items]
Market price (in dollars per unit)		$ 1.52	$ 2.91
Series B Preferred Stock
Class of Stock [Line Items]
Face amount of Series B Preferred Stock			$ 25,000,000
Temporary equity, warrants issued	$ 150,558		7,028,067
Allocated value of Series B Preferred Stock			$ 17,971,933
Shares of Common stock to be converted			8,064,534
Effective conversion price (in dollars per share)	$ 3.10		$ 2.23
Market price (in dollars per unit)			2.94
Intrinsic value per share (in dollars per share)			$ 0.7115
Intrinsic value of beneficial conversion feature			$ 5,737,796