SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Changes in Fair Value Derivative Liability (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning Balance	$ 370,000	$ 0
Derivative liability	(370,000)
Change in fair value of derivative liability	(873,000)	(50,000)
Ending Balance	3,045,500	370,000
The amount of total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to the fair value liabilities still held at the end of the period	1,347,900	50,000
Warrant
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Issuance of liability	3,330,000	0
Exchange of the April Warrants and Placement Agent Warrants	(746,700)
Change in fair value of warrant liabilities	54,200	0
Derivative Financial Instruments, Liabilities
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Derivative liability	0	420,000
Extinguishment of derivative liability (the Senior Convertible Note)	(370,000)	0
Unsecured Convertible Promissory Note
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Issuance of liability	$ 1,281,000	$ 0