CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 253,797	$ 268,252
Accounts receivable, net	9,621	8,263
Inventory	13,130	11,978
Prepaid expenses and other current assets	2,988	2,877
Total current assets	279,536	291,370
PROPERTY AND EQUIPMENT, net	2,471	2,302
OPERATING LEASE RIGHT OF USE ASSETS	1,391	0
INTANGIBLE ASSETS, net	82	170
NOTES RECEIVABLE	200	206
OTHER ASSETS	3,223	1,553
Total assets	286,903	295,601
CURRENT LIABILITIES:
Accounts payable and other accrued expenses	5,216	4,860
Accrued compensation expenses	3,604	2,639
Current operating lease liabilities	844	0
Deferred revenue	17	29
Current portion of long-term debt	3,200	3,200
Total current liabilities	12,881	10,728
LONG-TERM DEBT	2,919	3,716
OPERATING LEASE LIABILITIES NONCURRENT	600	0
WARRANT LIABILITY	0	81,388
EARNOUT LIABILITY	70,767	134,173
OTHER LIABILITIES	0	60
Total liabilities	87,167	230,065
COMMITMENTS AND CONTINGENCIES (Note 14)
STOCKHOLDERS’ EQUITY:
Common stock, $0.0001 par value, 740,000,000 shares authorized as of March 31, 2022 and December 31, 2021, and 123,461,312 and 117,750,608 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively	15	15
Additional paid-in capital	348,658	294,190
Accumulated other comprehensive loss	(62)	(2)
Accumulated deficit	(148,875)	(228,667)
Total stockholders’ equity	199,736	65,536
Total liabilities and stockholders’ equity	$ 286,903	$ 295,601