Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 69,162	$ 28,614
Accounts receivable	5	61
Inventory, net	750	5,824
Prepaid expenses and other current assets	1,244	2,131
Total current assets	71,161	36,630
Property and equipment, net	2,286	2,462
Intangible assets, net	2,717	3,216
Goodwill	2,791	2,791
Right-of-use assets	8,250	8,785
Other assets	365	365
Total assets	87,570	54,249
Current liabilities:
Accounts payable	2,022	2,904
Accrued expenses	3,982	4,389
Deferred revenue	38	16
Lease liability, current	858	774
Note payable, current		436
Related party note payable, current	98
Total current liabilities	6,998	8,519
Lease liability, less current	9,383	10,040
Related party note payable, less current	65,000
Total liabilities	81,381	18,559
Commitments and contingencies (Note 8)
Stockholders' equity:
Preferred stock, $0.001 par value; authorized – 50,000 shares; no shares issued and outstanding
Common stock, $0.001 par value: authorized – 500,000 shares; issued and outstanding – 37,228 shares and 29,716 shares at September 30, 2022 and December 31, 2021, respectively	37	29
Additional paid-in-capital	291,660	271,861
Accumulated other comprehensive loss
Accumulated deficit	(285,508)	(236,200)
Total stockholders' equity	6,189	35,690
Total liabilities and stockholders' equity	$ 87,570	$ 54,249