Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 143,024	$ 178,096
Short-term marketable securities	9,361	0
Trade accounts receivable	13,815	25,942
Inventory	15,664	14,547
Prepaid expenses and other current assets	10,606	11,985
Total current assets	192,470	230,570
Restricted cash	0	270
Property and equipment, net	29,317	27,992
Operating lease right-of-use assets	24,522	26,060
Other assets	2,397	2,361
Total assets	248,706	287,253
Current liabilities:
Trade accounts payable	8,499	8,198
Accrued expenses and other current liabilities	11,945	12,425
Deferred revenue	8,694	12,128
Total current liabilities	29,138	32,751
Notes payable	19,794	19,762
Deferred revenue, net of current portion	1,221	2,187
Lease liability, long-term	24,137	24,337
Total liabilities	74,290	79,037
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.00005 par value. Authorized 300,000,000 shares at June 30, 2022 and December 31, 2021; issued and outstanding 68,273,932 and 67,595,535 shares at June 30, 2022 and December 31, 2021, respectively	4	4
Additional paid-in capital	485,212	471,820
Accumulated deficit	(310,781)	(263,608)
Accumulated other comprehensive loss	(19)	0
Total stockholders’ equity	174,416	208,216
Total liabilities and stockholders’ equity	$ 248,706	$ 287,253

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).