Consolidated Statements of Operations and Comprehensive Loss - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues
Product revenues	$ 6,753	$ 97,885
Costs and expenses
Production costs	841,434	862,255
Sales and marketing	50,788	71,991
Research and development	568,762	663,481
General and administrative	1,637,190	1,255,851
Total costs and expenses	3,098,174	2,853,578
Operating loss	(3,091,421)	(2,755,693)
Other income (expense)
Interest expense	(17,045)	(13,338)
Other income (expense), net	(1,152)	5,100
Total other income (expense)	(18,197)	(8,238)
Net loss	(3,109,618)	(2,763,931)
Other comprehensive income (loss):
Foreign currency translation gain (loss)	(381,985)	87,551
Total other comprehensive income (loss)	(381,985)	87,551
Comprehensive loss	$ (3,491,603)	$ (2,676,380)
Basic and diluted net loss per share (in dollars per share)	$ (0.11)	$ (0.18)
Weighted average number of common shares -
Basic and diluted (in shares)	27,116,754	15,687,681