License agreements, research collaborations and development agreements (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
License Agreements Research Collaborations And Development Agreements [Line Items]
Revenue from contract	$ 829,716	$ 616,933
Royalty expense	8,996	62,500
Settlement fee	$ 350,000
Royalty percentage on sale of products	10.00%
Collaborations revenue [Member]
License Agreements Research Collaborations And Development Agreements [Line Items]
Revenue from contract	$ 118,072	250,000
New York State Department of Health and ILUM Health Solutions, LLC [Member]
License Agreements Research Collaborations And Development Agreements [Line Items]
Collaboration revenue receivable over 12 months of the project	$ 1,600,000
Contractual agreement period	15 months
New York State Department of Health and ILUM Health Solutions, LLC [Member] | Collaborations revenue [Member]
License Agreements Research Collaborations And Development Agreements [Line Items]
Revenue from contract	$ 108,000	$ 250,000
OpGen [Member]
License Agreements Research Collaborations And Development Agreements [Line Items]
Contract value	$ 450,000
Qiagen [Member]
License Agreements Research Collaborations And Development Agreements [Line Items]
Contractual agreement period	20 years