Significant Accounting Policies - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) Performance_Obligation Segment shares	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2014 USD ($) $ / shares shares
Significant Accounting Policies [Line Items]
Restricted cash	$ 2,138,000	$ 2,138,000
Unbilled receivables	200,000	900,000
Impairment of goodwill	0
Impairment losses on intangible assets	$ 0
Warrants issued to purchase stock | shares	0
Fair value adjustment of warrants			$ 2,266,000
Advertising expenses	$ 22,400,000	$ 14,500,000	6,600,000
Number of operating segment | Segment	1
Number of reportable segments | Segment	1
Sequencing Revenue
Significant Accounting Policies [Line Items]
Number of revenue performance obligations | Performance_Obligation	2
Series C Convertible Preferred Stock
Significant Accounting Policies [Line Items]
Warrants issued to purchase stock | shares				56,875
Weighted-average exercise price of warrants | $ / shares				$ 2.64
Line of credit facility				$ 5,000,000.0
Fair value adjustment of warrants			$ 2,300,000
Financial liabilities	$ 2,600,000