Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 58,302	$ 9,452
Marketable securities, short-term	99,742	62,351
Restricted cash	150	150
Accounts receivable	1,893	263
Inventory	10,932	8,424
Prepaid expenses and other current assets	4,635	1,816
Total current assets	175,654	82,456
Marketable securities, long-term	8,789
Property and equipment, net	9,940	4,427
Right-of-use asset, net	1,838	2,341
Intangible assets, net	3,780	4,110
Goodwill	12,026	12,026
Other assets	482	95
Total assets	212,509	105,455
Current liabilities:
Accounts payable	4,723	3,882
Accrued liabilities	6,500	10,076
Contingent consideration, short-term	4,000	8,200
Operating lease liabilities, short-term	907	833
Common and preferred stock warrant liability		8,919
Total current liabilities	16,130	31,910
Operating lease liabilities, long-term	1,365	2,054
Long-term debt	38,762	38,244
Contingent consideration, long-term	3,600	5,700
Other long-term liabilities	8
Total liabilities	59,865	77,908
Commitments and contingencies (Note 12)
Stockholders' equity (deficit)
Preferred stock, $0.001 par value; 5,000,000 shares authorized as of September 30, 2020 and no shares authorized as of December 31, 2019; no shares issued and outstanding as of each of September 30, 2020 and December 31, 2019, respectively
Common stock, $0.001 par value; 260,000,000 shares authorized as of each of September 30, 2020 and December 31, 2019; 27,826,408 and 695,902 shares issued and outstanding as of September 30, 2020 and December 31, 2019, respectively	28	1
Additional paid-in capital	484,162	33,252
Accumulated deficit	(331,613)	(259,034)
Accumulated other comprehensive income (loss)	67	(30)
Total stockholders' equity (deficit)	152,644	(225,811)
Total liabilities, convertible preferred stock and stockholders' equity (deficit)	$ 212,509	105,455
Series A Convertible Preferred Stock [Member]
Convertible preferred stock
Convertible preferred stock		3,059
Series B Convertible Preferred Stock [Member]
Convertible preferred stock
Convertible preferred stock		40,685
Series C Convertible Preferred Stock [Member]
Convertible preferred stock
Convertible preferred stock		74,575
Series D Convertible Preferred Stock [Member]
Convertible preferred stock
Convertible preferred stock		$ 135,039