Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 37,859	$ 68,509
Short-term investments	156,989	134,815
Accounts receivable, net	34,121	32,980
Inventories	61,599	49,215
Prepaid expenses and other current assets	4,569	5,700
Total current assets	295,137	291,219
Restricted cash	3,329	3,329
Property and equipment, net	10,873	13,273
Operating lease right-of-use assets	4,675	5,375
Other assets	520	605
Total assets	314,534	313,801
Current liabilities:
Accounts payable	5,255	5,827
Accrued compensation and related benefits	11,431	19,005
Accrued expenses and other current liabilities	9,747	13,459
Accrued warranty liability	2,199	3,712
Deferred revenue, current	13,108	11,727
Operating lease liabilities, current	1,693	1,593
Total current liabilities	43,433	55,323
Accrued interest	1,762	896
Deferred revenue	130	101
Operating lease liabilities	3,616	4,482
Term loan	196,994	130,113
Total liabilities	245,935	190,915
Commitments and contingencies (Note 6)
Stockholders' equity:
Preferred stock, $0.001 par value; 5,000 shares authorized, and no shares issued and outstanding as of June 30, 2024 and December 31, 2023	0	0
Common stock, $0.001 par value; 300,000 shares authorized as of June 30, 2024 and December 31, 2023; 52,084 and 50,317 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	52	50
Additional paid-in capital	1,104,994	1,084,515
Accumulated other comprehensive loss	(302)	68
Accumulated deficit	(1,036,145)	(961,747)
Total stockholders' equity	68,599	122,886
Total liabilities and stockholders' equity	$ 314,534	$ 313,801