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Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 10,587	$ 9,584
Healthcare insurers
Disaggregation of Revenue [Line Items]
Revenue	6,027	6,062
Government
Disaggregation of Revenue [Line Items]
Revenue	2,009	2,245
Client
Disaggregation of Revenue [Line Items]
Revenue	1,965	1,082
Other
Disaggregation of Revenue [Line Items]
Revenue	286	195
Janssen (SIMPONI)
Disaggregation of Revenue [Line Items]
Revenue	$ 300	$ 0

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+ References

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-Publisher FASB
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