Revenue from contracts with customers (Schedule of Revenues by Type of Service) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Total revenue	$ 4,306,031	$ 4,214,441
Product sales [Member]
Disaggregation of Revenue [Line Items]
Total revenue	2,656,669	2,704,364
Laboratory services [Member]
Disaggregation of Revenue [Line Items]
Total revenue	813,210	167,736
Collaborations Revenue [Member]
Disaggregation of Revenue [Line Items]
Total revenue	$ 836,152	$ 1,342,341