Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 9,859	$ 11,834
Short-term investments	122,023	93,968
Accounts receivable	15,244	10,956
Inventories	18,924	14,835
Prepaid and other current assets	1,897	2,962
Total current assets	167,947	134,555
Property and equipment, net	10,262	10,138
Operating leases right-of-use assets	2,793	3,943
Restricted cash	711	761
Other assets	137	767
Total assets	181,850	150,164
Current liabilities:
Accounts payable	4,105	2,595
Accrued expenses and other current liabilities	12,861	12,672
Lease liabilities	1,976	1,970
Total current liabilities	18,942	17,237
Long-term lease liabilities	1,354	2,856
Term loan, net	0	40,169
Other long-term liabilities	75	0
Total liabilities	20,371	60,262
Commitments and contingencies (Note 9)
Stockholders' deficit:
Common stock, $0.001 par value, 900,000,000 shares authorized, 35,168,041 shares issued and outstanding as of September 30, 2023 and 28,268,389 shares issued and outstanding as of December 31, 2022	36	28
Preferred stock, $0.001 par value, 100,000,000 shares authorized, no shares issued and outstanding	0	0
Additional paid-in capital	746,966	636,001
Accumulated other comprehensive loss	(60)	(95)
Accumulated deficit	(585,463)	(546,032)
Total stockholders' deficit	161,479	89,902
Total liabilities and stockholders' equity	$ 181,850	$ 150,164