Revenue from Contracts with Customers (Schedule of Revenues by Type of Service) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Total revenue	$ 616,933	$ 1,020,177
Product sales [Member]
Disaggregation of Revenue [Line Items]
Total revenue	366,933	520,177
Collaborations Revenue [Member]
Disaggregation of Revenue [Line Items]
Total revenue	$ 250,000	$ 500,000