REVENUE (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Product sales:
Sales Revenue, Goods, Net	$ 4,433,296	$ 2,596,133
Grant and other income:
Revenue From Grants	491,355	517,385
Total revenue	4,924,651	3,113,518
United States
Product sales:
Sales Revenue, Goods, Net	1,800	0
Grant and other income:
Revenue From Grants	491,355	517,385
Germany
Product sales:
Sales Revenue, Goods, Net	2,667,408	1,539,742
All other countries
Product sales:
Sales Revenue, Goods, Net	1,764,088	1,056,391
Direct [Member]
Product sales:
Sales Revenue, Goods, Net	3,362,612	1,872,678
Grant and other income:
Total revenue	3,362,612	1,872,678
Direct [Member] | United States
Product sales:
Sales Revenue, Goods, Net	1,800	0
Grant and other income:
Revenue From Grants	0	0
Direct [Member] | Germany
Product sales:
Sales Revenue, Goods, Net	2,667,408	1,539,742
Direct [Member] | All other countries
Product sales:
Sales Revenue, Goods, Net	693,404	332,936
Distributors and Strategic Partners [Member]
Product sales:
Sales Revenue, Goods, Net	1,070,684	723,455
Grant and other income:
Total revenue	1,070,684	723,455
Distributors and Strategic Partners [Member] | United States
Product sales:
Sales Revenue, Goods, Net	0	0
Grant and other income:
Revenue From Grants	0	0
Distributors and Strategic Partners [Member] | Germany
Product sales:
Sales Revenue, Goods, Net	0	0
Distributors and Strategic Partners [Member] | All other countries
Product sales:
Sales Revenue, Goods, Net	1,070,684	723,455
United States Government Agencies [Member]
Product sales:
Sales Revenue, Goods, Net	0	0
Grant and other income:
Total revenue	491,355	517,385
United States Government Agencies [Member] | United States
Product sales:
Sales Revenue, Goods, Net	0	0
Grant and other income:
Revenue From Grants	491,355	517,385
United States Government Agencies [Member] | Germany
Product sales:
Sales Revenue, Goods, Net	0	0
United States Government Agencies [Member] | All other countries
Product sales:
Sales Revenue, Goods, Net	$ 0	$ 0