Balance Sheets Components (Tables)

6 Months Ended

Jun. 30, 2022

Balance Sheet Related Disclosures [Abstract]

Schedule of Accounts Receivable, Net

Accounts receivable, net consisted of the following:

	As of
	June 30, 2022			December 31, 2021
	(in thousands)
Accounts receivable, gross	$	38,774		$	38,426
Allowance for credit losses		(50	)		(50	)
Accounts receivable, net	$	38,724		$	38,376

Schedule of Inventory

Inventories consisted of the following:

	As of
	June 30, 2022		December 31, 2021
	(in thousands)
Raw materials	$	3,779	$	1,841
Work in progress		23,854		16,963
Finished goods		6,750		4,826
Total inventories	$	34,383	$	23,630

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following:

	As of
	June 30, 2022		December 31, 2021
	(in thousands)
Prepaid expenses	$	3,923	$	2,398
Other current assets		3,458		2,078
Total prepaid expenses and other current assets	$	7,381	$	4,476

Schedule of Property and Equipment Net

Property and equipment, net consisted of the following:

	As of
	June 30, 2022			December 31, 2021
	(in thousands)
Lab and manufacturing equipment	$	59,925		$	44,283
Computer equipment		2,392			1,977
Furniture and fixtures		463			433
Construction in progress		8,645			7,100
Leasehold improvements		5,956			5,211
		77,381			59,004
Accumulated depreciation		(25,461	)		(21,102	)
Total property and equipment, net	$	51,920		$	37,902

Schedule of Intangible Assets, Net

Intangible assets, net consisted of the following:

	As of
	June 30, 2022							December 31, 2021
	(in thousands)
	Gross Assets		Accumulated Amortization			Net Assets		Gross Assets		Accumulated Amortization			Net Assets
Internal use software	$	9,434	$	(8,633	)	$	801	$	9,434	$	(8,633	)	$	801
Purchased intangibles		10,749		(7,247	)		3,502		11,703		(6,527	)		5,176
Intangible assets	$	20,183	$	(15,880	)	$	4,303	$	21,137	$	(15,160	)	$	5,977

Schedule of Future Amortization Expense for Intangible Assets

The estimated aggregate future amortization expense for intangible assets in development stage and subject to amortization as of June 30, 2022 is summarized as below:

	(in thousands)
2022 (remainder)	$	947
2023		1,876
2024		1,182
2025		228
2026 and beyond		70
	$	4,303

Schedule of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:

	As of
	June 30, 2022		December 31, 2021
	(in thousands)
Accrued payroll and related benefits	$	5,990	$	7,237
Revenue reserves		2,450		2,194
Deferred non-recurring engineering services		3,409		5,666
Short term lease liability		2,205		1,336
Accrued customer rebates		2,654		3,107
Other accrued expenses		5,290		4,742
Total accrued expenses and other current liabilities	$	21,998	$	24,282