Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 30,830	$ 26,795
Accounts receivable, net	9,026	10,665
Inventory	7,345	6,683
Prepaid expenses and other current assets	411	604
Total current assets	47,612	44,747
Property and equipment, net	3,522	3,883
Right-of-use assets	6,074	6,641
Other assets	62	62
Total assets	57,270	55,333
Current liabilities:
Accounts payable	1,230	2,778
Accrued liabilities	2,832	3,533
Deferred revenue	725	821
Current portion of long-term debt		2,594
Lease liabilities, current portion	1,156	1,122
Other liabilities	50	27
Total current liabilities	5,993	10,875
Lease liabilities, net of current portion	4,991	5,580
Long-term income tax liability	214	214
Total liabilities	11,198	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 June 30, 2023 and December 31, 2022, respectively
Common stock, $0.0001 par value per share; 100,000,000 shares authorized; 20,743,422 and 20,374,288 shares issued and outstanding as of June 30, 2023 and December 31, 2022, respectively	2	2
Additional paid-in capital	188,126	185,364
Accumulated deficit	(142,056)	(146,702)
Total stockholders' equity	46,072	38,664
Total liabilities and stockholders' equity	$ 57,270	$ 55,333