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Debt Instrument Interest Rate at Beginning of Period.

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Debt instrument interest rate at end of period.

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Debt security investment outstanding borrowing amount.

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Investment margin liabilities current.

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Payments for closing of escrow, financed under margin loan.

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Identification of the lender and information about a contractual promise to repay a short-term or long-term obligation, which includes borrowings under lines of credit, notes payable, commercial paper, bonds payable, debentures, and other contractual obligations for payment. This may include rationale for entering into the arrangement, significant terms of the arrangement, which may include amount, repayment terms, priority, collateral required, debt covenants, borrowing capacity, call features, participation rights, conversion provisions, sinking-fund requirements, voting rights, basis for conversion if convertible and remarketing provisions. The description may be provided for individual debt instruments, rational groupings of debt instruments, or by debt in total.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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Amount of the recorded unconditional purchase obligation maturing in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Debt, Commitments and Contingencies - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Debt, Commitments and Contingencies [Line Items]
Debt security investment outstanding borrowing amount			$ 15,100,000
Interest on loan withdrawn from margin account			1.00%
Payments for closing of escrow, financed under margin loan			$ 15,000,000.0
Investment margin loan	$ 15,107,000		15,107,000		$ 15,019,000
Interest expense	30,000	$ 0	88,000	$ 0
Non-cancelable purchase obligations	13,800,000		13,800,000
Reagents and Other Supplies
Debt, Commitments and Contingencies [Line Items]
Non-cancelable purchase obligations, payable within twelve months	10,400,000		10,400,000
Medical Lab Equipment
Debt, Commitments and Contingencies [Line Items]
Non-cancelable purchase obligations, payable within twelve months	3,000,000.0		3,000,000.0
Medical Lab Furniture
Debt, Commitments and Contingencies [Line Items]
Non-cancelable purchase obligations, payable within twelve months	373,000		373,000
Xilong Scientific \| FF Gene Biotech
Debt, Commitments and Contingencies [Line Items]
Interest expense	74,000		74,000
Notes payable	$ 5,900,000		$ 5,900,000
Debt instrument, interest rate terms			The loan is payable on December 31, 2022 and interest rate on the loan is 4.97%.
Debt instrument, interest rate	4.97%		4.97%
Maximum
Debt, Commitments and Contingencies [Line Items]
Interest rate			1.00%