Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 34,934	$ 26,795
Accounts receivable, net	10,088	10,665
Inventory	8,637	6,683
Prepaid expenses and other current assets	238	604
Total current assets	53,897	44,747
Property and equipment, net	3,251	3,883
Right-of-use assets	5,786	6,641
Other assets	62	62
Total assets	62,996	55,333
Current liabilities:
Accounts payable	2,570	2,778
Accrued liabilities	3,479	3,533
Deferred revenue	510	821
Current portion of long-term debt		2,594
Lease liabilities, current portion	1,172	1,122
Other liabilities		27
Total current liabilities	7,731	10,875
Lease liabilities, net of current portion	4,693	5,580
Long-term income tax liability	214	214
Total liabilities	12,638	16,669
Commitments and contingencies (Note 5)
Stockholders' equity:
Preferred stock, $0.0001 par value per share; 5,000,000 shares authorized; no shares issued and outstanding as of September 30, 2023 and December 31, 2022, respectively
Common stock, $0.0001 par value per share; 100,000,000 shares authorized; 20,934,919 and 20,374,288 shares issued and outstanding as of September 30, 2023 and December 31, 2022, respectively	2	2
Additional paid-in capital	189,974	185,364
Accumulated deficit	(139,618)	(146,702)
Total stockholders' equity	50,358	38,664
Total liabilities and stockholders' equity	$ 62,996	$ 55,333