Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 23,051	$ 21,409
Accounts receivable, net	9,283	8,193
Inventory	6,376	6,396
Prepaid expenses and other current assets	800	762
Total current assets	39,510	36,760
Property and equipment, net	2,594	973
Right-of-use assets	3,649	913
Other assets	62	734
Total assets	45,815	39,380
Current liabilities:
Accounts payable	2,689	1,776
Accrued liabilities	2,165	3,579
Deferred revenue		832
Current portion of long-term debt	3,761	3,370
Lease liabilities	910	724
Other liabilities	29	50
Total current liabilities	9,554	10,331
Long-term debt, net of current portion		1,529
Lease liabilities, net of current portion	2,782	68
Long-term income tax liability	214	214
Total liabilities	12,550	12,142
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.0001 par value per share; 5,000,000 shares authorized; no shares issued and outstanding as of June 30, 2022 and December 31, 2021
Common stock, $0.0001 par value per share; 100,000,000 shares authorized; 20,137,520 and 19,858,460 shares issued and outstanding as of June 30, 2022, and December 31, 2021	2	2
Additional paid-in capital	182,488	180,067
Accumulated deficit	(149,225)	(152,831)
Total stockholders' equity	33,265	27,238
Total liabilities and stockholders' equity	$ 45,815	$ 39,380