EQUITY PLANS AND SHARE-BASED COMPENSATION - Share-based Compensation Cost By Line Item And Award Type (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation cost	$ 12,806	$ 150,796	$ 108,717	$ 708,776
Stock options [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation cost	12,806	58,271	82,388	295,229
Restricted stock units and awards [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation cost	0	92,525	26,329	413,547
Research and development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation cost	659	29,502	17,557	154,786
Selling, general, administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Share-based compensation cost	$ 12,147	$ 121,294	$ 91,160	$ 553,990