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Major Customers and Concentration of Credit Risk (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Concentration Risk [Line Items]
Total revenues	$ 2,502,624	$ 2,000,868	$ 24,448,761	$ 1,529,644	$ 8,787,234	$ 2,644,543	$ 20,412,124	$ 10,376,185	$ 30,481,897	$ 42,220,086	$ 35,368,361
Revenue | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage									100.00%	100.00%	100.00%
ApolloBio
Concentration Risk [Line Items]
Total revenues									$ 23,000,000	$ 0	$ 0
ApolloBio | Revenue | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage									75.00%	0.00%	0.00%
AstraZeneca
Concentration Risk [Line Items]
Total revenues									$ 6,850,424	$ 22,269,773	$ 1,518,639
Accounts receivable	$ 3,200,000								$ 3,200,000		$ 1,700,000
AstraZeneca | Revenue | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage									23.00%	53.00%	4.00%
AstraZeneca | Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage									98.00%		28.00%
DARPA
Concentration Risk [Line Items]
Total revenues									$ 0	$ 9,983,927	$ 26,602,183
Accounts receivable					$ 4,100,000					$ 4,100,000
DARPA | Revenue | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage									0.00%	24.00%	75.00%
DARPA | Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage										69.00%
Roche
Concentration Risk [Line Items]
Total revenues									$ 0	$ 6,107,254	$ 4,917,929
Roche | Revenue | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage									0.00%	14.00%	14.00%
GeneOne (affiliated entity)
Concentration Risk [Line Items]
Total revenues									$ 342,386	$ 551,208	$ 1,188,432
GeneOne (affiliated entity) | Revenue | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage									1.00%	1.00%	4.00%
All other
Concentration Risk [Line Items]
Total revenues									$ 289,087	$ 3,307,924	$ 1,141,178
All other | Revenue | Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage									1.00%	8.00%	3.00%

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