Balance Sheet Details (Tables)

12 Months Ended

Dec. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Short-Term Investments

The following is a summary of our short-term investments (in thousands):

	December 31, 2022
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
U.S. treasury bills and government agency obligations	$	35,734	$	—	$	(19	)	$	35,715
U.S. commercial paper		5,481		—		—			5,481
Foreign commercial paper		28,292		—		—			28,292
Total	$	69,507	$	—	$	(19	)	$	69,488

	December 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
U.S. corporate debt securities	$	15,009	$	—	$	(3	)	$	15,006
Foreign corporate debt securities		10,551		—		(3	)		10,548
U.S. commercial paper		5,998		—		—			5,998
Foreign commercial paper		35,487		—		—			35,487
Total	$	67,045	$	—	$	(6	)	$	67,039

Schedule of Inventory

Inventory consists of the following (in thousands):

	December 31,
	2022		2021
Raw materials	$	15,137	$	21,193
Work in process		20,723		20,935
Finished goods		18,713		6,254
Total inventory	$	54,573	$	48,382

Schedule of Prepaid Expenses and Other Assets

Prepaid expenses and other assets consist of the following (in thousands):

	December 31,
	2022		2021
Prepaid expenses	$	21,120	$	27,945
Other receivables		6,197		103
Prepaid insurance		1,947		2,135
Deposits		254		254
Interest receivable		154		245
Total prepaid expenses and other assets	$	29,672	$	30,682

Schedule of Property and Equipment, Net

Property and equipment, net consists of the following (in thousands):

	December 31,
	2022			2021
Scientific equipment	$	33,318		$	33,403
Leasehold improvements		647			610
Computer equipment and software		1,506			1,497
Furniture, fixtures and office equipment		982			1,467
Property and equipment, gross		36,453			36,977
Less: accumulated depreciation and amortization		(14,293	)		(13,243	)
Property and equipment, net	$	22,160		$	23,734

Schedule of Accrued Liabilities

Accrued payroll and employee liabilities consist of the following (in thousands):

	December 31,
	2022		2021
Accrued employee salaries and benefits	$	2,134	$	1,784
Accrued bonuses		7,783		9,439
Accrued vacation		3,499		4,040
Total accrued payroll and employee liabilities	$	13,416	$	15,263

Other accrued liabilities consist of the following (in thousands):

	December 31,
	2022		2021
Accrued product sales allowances	$	33,317	$	22,560
Accrued consulting and professional fees		4,236		2,666
Accrued accounts payable		363		70
Other accrued liabilities		636		563
Total other accrued liabilities	$	38,552	$	25,859