WARRANTS (Warrant Share Activity) (Details) - shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Roll forward of warrant activity
Balance at the beginning of the period (in warrants)	3,730,255	2,915,559
Warrants Issued (in warrants)	0	1,626,898
Warrants Exercised/Expired (in warrants)	(339,155)	(50,889)
Balance at the end of the period (in warrants)	3,391,100	4,491,568
Bridge Warrants
Roll forward of warrant activity
Balance at the beginning of the period (in warrants)	249,999	249,999
Warrants Issued (in warrants)	0	0
Warrants Exercised/Expired (in warrants)	(249,999)	0
Balance at the end of the period (in warrants)	0	249,999
Consulting Warrants
Roll forward of warrant activity
Balance at the beginning of the period (in warrants)	12,223	98,000
Warrants Issued (in warrants)	0	0
Warrants Exercised/Expired (in warrants)	(5,556)	(41,889)
Balance at the end of the period (in warrants)	6,667	56,111
Exercise of warrants, cashless (in warrants)	5,542	41,800
Financing Warrants
Roll forward of warrant activity
Balance at the beginning of the period (in warrants)	62,530	78,186
Warrants Issued (in warrants)	0	0
Warrants Exercised/Expired (in warrants)	0	0
Balance at the end of the period (in warrants)	62,530	78,186
Underwriting Warrants
Roll forward of warrant activity
Balance at the beginning of the period (in warrants)	310,500	310,500
Warrants Issued (in warrants)	0	0
Warrants Exercised/Expired (in warrants)	0	0
Balance at the end of the period (in warrants)	310,500	310,500
IR Consulting Warrants
Roll forward of warrant activity
Balance at the beginning of the period (in warrants)	6,000	48,000
Warrants Issued (in warrants)	0	0
Warrants Exercised/Expired (in warrants)	0	0
Balance at the end of the period (in warrants)	6,000	48,000
Private Placement Warrants - 2016
Roll forward of warrant activity
Balance at the beginning of the period (in warrants)	891,063
Warrants Issued (in warrants)	0
Warrants Exercised/Expired (in warrants)	(73,000)
Balance at the end of the period (in warrants)	818,063
Underwriting Warrants - Public Offering 2016
Roll forward of warrant activity
Balance at the beginning of the period (in warrants)	98,846	0
Warrants Issued (in warrants)		1,626,898
Warrants Exercised/Expired (in warrants)		0
Balance at the end of the period (in warrants)	98,846	1,626,898
Private Placement Warrants - 2016
Roll forward of warrant activity
Balance at the beginning of the period (in warrants)	122,175	1,995,124
Warrants Issued (in warrants)	0	0
Warrants Exercised/Expired (in warrants)	0	(9,000)
Balance at the end of the period (in warrants)	122,175	1,986,124
Exercise of warrants, cashless (in warrants)	242,913	3,510
Private Placement Warrants - September 2017
Roll forward of warrant activity
Balance at the beginning of the period (in warrants)	1,976,919	135,750
Warrants Issued (in warrants)	0	0
Warrants Exercised/Expired (in warrants)	(10,600)	0
Balance at the end of the period (in warrants)	1,966,319	135,750