PREFERRED STOCK AND DETACHABLE WARRANTS (Details) - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Temporary Equity [Line Items]
Balance at beginning of period		$ 22,179,963			$ 22,179,963
Plus: discount accretion	$ 532,925	530,433	$ 470,825	$ 457,853
Balance at end of period	23,933,351				23,933,351
Series B Preferred Stock
Temporary Equity [Line Items]
Balance at beginning of period		8,900,208		7,190,467	8,900,208	$ 7,190,467
Less: conversions of shares to common					0	(62,973)
Plus: discount accretion					666,048	525,664
Plus: dividends in kind	170,156		139,186		337,798	278,372
Balance at end of period	9,904,054		7,931,530		9,904,054	7,931,530
Series B1 Preferred Stock
Temporary Equity [Line Items]
Balance at beginning of period		$ 13,279,755		$ 15,769,478	13,279,755	15,769,478
Less: conversions of shares to common					(119,768)	(754,766)
Plus: discount accretion					397,310	403,014
Plus: dividends in kind	236,640		401,517		472,000	683,044
Balance at end of period	$ 14,029,297		$ 16,100,770		$ 14,029,297	$ 16,100,770