Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 12,319	$ 24,071
Marketable securities, short-term	62,292	76,702
Restricted cash	150	150
Accounts receivable	2,978	3,633
Inventory	17,620	16,408
Prepaid expenses and other current assets	9,064	5,326
Total current assets	104,423	126,290
Marketable securities, long-term	4,014	7,120
Property and equipment, net	12,962	13,670
Right-of-use assets, net	4,358	4,521
Intangible assets, net	4,853	5,013
Goodwill	0	12,026
Other assets	1,032	1,152
Total assets	131,642	169,792
Current liabilities:
Accounts payable	4,781	7,519
Accrued liabilities	10,632	9,096
Contingent consideration, short-term	1,400	1,500
Operating lease liabilities, short-term	501	395
Total current liabilities	17,314	18,510
Operating lease liabilities, long-term	4,471	4,591
Long-term debt	40,793	40,415
Contingent consideration, long-term	300	500
Other long-term liabilities	2	50
Total liabilities	62,880	64,066
Commitments and contingencies (Note 12)
Stockholders' equity
Preferred stock, $0.001 par value; 5,000,000 shares authorized as of March 31, 2022 and December 31, 2021; 6,666 shares of the preferred stock, designated as Series A Common Equivalent Preferred Stock, are issued and outstanding as of March 31, 2022 and December 31, 2021	0	0
Common stock, $0.001 par value; 260,000,000 shares authorized as of March 31, 2022 and December 31, 2021; 28,279,065 and 27,957,223 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively	28	28
Additional paid-in capital	587,889	584,613
Accumulated deficit	(518,715)	(478,698)
Accumulated other comprehensive loss	(440)	(217)
Total stockholders' equity	68,762	105,726
Total liabilities and stockholders' equity	$ 131,642	$ 169,792