Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 26,795	$ 21,409
Accounts receivable, net	10,665	8,193
Inventory	6,683	6,396
Prepaid expenses and other current assets	604	762
Total current assets	44,747	36,760
Property and equipment, net	3,883	973
Right-of-use assets	6,641	913
Other assets	62	734
Total assets	55,333	39,380
Current liabilities:
Accounts payable	2,778	1,776
Accrued liabilities	3,533	3,579
Deferred revenue	821	832
Current portion of long-term debt	2,594	3,370
Lease liabilities, current portion	1,122	724
Other liabilities	27	50
Total current liabilities	10,875	10,331
Long-term debt, net of current portion		1,529
Lease liabilities, net of current portion	5,580	68
Long-term income tax liability	214	214
Total liabilities	16,669	12,142
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 December 31, 2022 and 2021
Common stock, $0.0001 par value per share; 100,000,000 shares authorized; 20,374,288 and 19,858,460 shares issued and outstanding as of December 31, 2022 and 2021	2	2
Additional paid-in capital	185,364	180,067
Accumulated deficit	(146,702)	(152,831)
Total stockholders' equity	38,664	27,238
Total liabilities and stockholders' equity	$ 55,333	$ 39,380