CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 68,512	$ 84,641
Short-term investments	37,074
Accounts receivable, net	3,349	2,516
Inventory	15,185	8,150
Prepaid expenses and other current assets	2,911	3,552
Total current assets	127,031	98,859
Property and equipment, net	2,739	2,366
Operating lease right-of-use assets	2,140	2,746
Intangible assets, net	2,458	2,956
Goodwill	8,454	8,454
Other assets	118	118
Total assets	142,940	115,499
Current liabilities:
Accounts payable	2,057	3,061
Accrued expenses	5,098	4,758
Accrued compensation	3,959	3,376
Operating lease liabilities	982	975
Other current liabilities	2,249	2,482
Total current liabilities	14,345	14,652
Operating lease liabilities, net of current	1,121	1,730
Term loan, net of current	36,599	26,496
Other liabilities	519	558
Total liabilities	52,584	43,436
Commitments and contingencies (Note 8)
Stockholders' deficit:
Preferred stock, $0.001 par value; authorized -10,000,000 shares; issued and outstanding - none
Common stock, $0.001 par value; authorized - 500,000,000 shares; issued - 49,803,355 shares as of September 30, 2022 and 26,383,225 shares as of December 31, 2021; outstanding - 49,756,666 shares as of September 30, 2022 and 26,336,536 shares as of December 31, 2021	50	26
Additional paid-in-capital	448,648	384,132
Accumulated other comprehensive loss	(49)
Accumulated deficit	(358,242)	(312,044)
Stockholders' deficit before treasury stock	90,407	72,114
Less: Treasury stock	(51)	(51)
Total stockholders' equity	90,356	72,063
Total liabilities and stockholders' equity	$ 142,940	$ 115,499