For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Basis of Presentation and Significant Accounting Policies - Segment Information (Details) - segment	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Information
Number of operating segments			1
Other customers \| Revenue \| Customer concentration
Segment Information
Percentages of revenue recognized	0.00%	0.00%	0.00%	0.00%
Roche \| Revenue \| Customer concentration
Segment Information
Percentages of revenue recognized	52.00%	71.00%	32.00%
Roche \| Revenue \| Customer concentration
Segment Information
Percentages of revenue recognized				93.00%
Huadong \| Revenue \| Customer concentration
Segment Information
Percentages of revenue recognized			43.00%
Lilly \| Revenue \| Customer concentration
Segment Information
Percentages of revenue recognized	30.00%		20.00%
Novartis \| Revenue \| Customer concentration
Segment Information
Percentages of revenue recognized	18.00%	28.00%