Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 29,188	$ 55,358
Short-term investments	163,673	158,316
Accounts receivable, net	21,779	18,007
Inventories	22,066	19,293
Prepaid expenses and other current assets	4,277	3,924
Total current assets	240,983	254,898
Long-term investments	4,348
Property and equipment, net	8,337	9,372
Restricted cash	0	155
Other non-current assets	7,196	5,260
Total assets	260,864	269,685
Current liabilities:
Accounts payable	5,094	2,523
Accrued liabilities	18,928	21,965
Total current liabilities	24,022	24,488
Long-term debt	75,364	74,596
Other liabilities	8,336	6,726
Total liabilities	107,722	105,810
Commitments and contingencies (Note 7)
Stockholders' equity:
Preferred stock, $0.001 par value Shares authorized: 5,000,000 at September 30, 2023 and December 31, 2022 Shares issued and outstanding: none at September 30, 2023 and December 31, 2022
Common stock, $0.001 par value Shares authorized: 100,000,000 at September 30, 2023 and December 31, 2022 Shares issued and outstanding: 38,907,789 and 38,355,972 at September 30, 2023 and December 31, 2022, respectively	39	38
Additional paid-in capital	539,831	507,715
Accumulated other comprehensive loss	(284)	(166)
Accumulated deficit	(386,444)	(343,712)
Total stockholders’ equity	153,142	163,875
Total liabilities and stockholders’ equity	$ 260,864	$ 269,685