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Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 41,975	$ 40,387
Healthcare insurers
Disaggregation of Revenue [Line Items]
Revenue	22,456	23,984
Government
Disaggregation of Revenue [Line Items]
Revenue	8,446	9,896
Client
Disaggregation of Revenue [Line Items]
Revenue	5,109	4,392
Other
Disaggregation of Revenue [Line Items]
Revenue	836	639
Janssen (SIMPONI)
Disaggregation of Revenue [Line Items]
Revenue	$ 5,128	$ 1,476

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