Consolidated Statements of Operations and Comprehensive Loss - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues
Product revenues	$ 2,950	$ 42,486	$ 9,703	$ 140,371
Costs and expenses
Production costs	1,041,316	941,113	1,882,750	1,803,368
Sales and marketing	137,434	103,390	188,222	175,381
Research and development	635,655	813,449	1,204,417	1,476,930
General and administrative	1,693,544	2,204,253	3,330,734	3,460,105
Total costs and expenses	3,507,949	4,062,205	6,606,123	6,915,784
Operating loss	(3,504,999)	(4,019,719)	(6,596,420)	(6,775,413)
Other income (expense)
Interest expense	(18,147)	(14,212)	(35,192)	(27,550)
Other income (expense), net	(538)	7,200	(1,690)	12,300
Total other income (expense)	(18,685)	(7,012)	(36,882)	(15,250)
Net loss	(3,523,684)	(4,026,731)	(6,633,302)	(6,790,663)
Other comprehensive income (loss):
Foreign currency translation gain (loss)	165,501	84,788	(216,484)	172,340
Total other comprehensive income (loss)	165,501	84,788	(216,484)	172,340
Comprehensive loss	$ (3,358,183)	$ (3,941,943)	$ (6,849,786)	$ (6,618,323)
Basic and diluted net loss per share (in dollars per share)	$ (0.11)	$ (0.19)	$ (0.22)	$ (0.37)
Weighted average number of Common Shares -
Basic and diluted (in shares)	32,097,992	21,313,055	29,607,373	18,515,907