Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 27,159	$ 24,571
Investments	160,178	226,041
Accounts receivable, net of allowance for doubtful accounts of $463,000 and $690,000 as of June 30, 2022 and December 31, 2021, respectively	4,851	4,934
Inventory	20,591	12,387
Prepaid expenses and other current assets	3,509	4,481
Total current assets	216,288	272,414
Property and equipment, net	13,923	10,318
Operating lease right-of-use assets	6,431	6,691
Finance lease right-of-use assets, related party	3,810	3,926
Intangible assets, net	24,005	26,842
Goodwill	56,254	56,160
Other long-term assets	841	749
Total assets	321,552	377,100
Current liabilities:
Accounts payable	7,695	9,696
Accrued expenses	7,760	9,694
Contract liabilities	1,180	684
Operating lease liability	1,757	1,467
Finance lease liability, related party	292	299
Contingent consideration	9,224	0
Total current liabilities	27,908	21,840
Operating lease liability, net of current portion	5,075	5,288
Finance lease liability, net of current portion, related party	3,632	3,642
Contingent consideration	0	9,066
Long-term contract liabilities	203	146
Total liabilities	36,818	39,982
Commitments and contingencies (Note 7)
Stockholders’ equity:
Preferred stock, $0.0001 par value; 10,000,000 shares authorized and no shares issued or outstanding as of June 30, 2022 and December 31, 2021	0	0
Common stock, $0.0001 par value, 400,000,000 shares authorized at June 30, 2022 and December 31, 2021; 290,061,000 and 289,602,000 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively	29	29
Additional paid-in capital	564,852	553,747
Accumulated deficit	(278,229)	(216,119)
Accumulated other comprehensive loss	(1,918)	(539)
Total stockholders’ equity	284,734	337,118
Total liabilities and stockholders’ equity	$ 321,552	$ 377,100