CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash	$ 191,137	$ 107,765
Accounts receivable, net	25,751	23,527
Inventories, net	57,376	46,001
Prepaid expenses and other current assets	3,433	5,439
Withholding tax receivable from Officer	1,076	1,076
Current assets of discontinued operations	348	352
Total current assets	279,121	184,160
Property and equipment, net	56,124	36,670
Right-of-use asset	21,704	1,177
Goodwill	13,897	13,897
Intangible assets, net	24,129	24,720
Debt securities	1,313
Equity securities	7,619
Other assets	541	541
Noncurrent assets of discontinued operations	55	58
Total assets	404,503	261,223
Current liabilities:
Accounts payable	26,416	17,599
Accrued expenses	36,730	35,231
Current portion of long-term debt	5,374	4,200
Current portion of operating lease liability	1,486	885
Current liabilities of discontinued operations	143	397
Total current liabilities	70,149	58,312
Long-term debt, less current portion	38,580	38,034
Operating lease liability, less current portion	20,752	41
Other long-term liabilities	11,289	11,353
Commitments and contingencies (Note 6)
Stockholders' equity:
Common stock, $0.0001 par value; 200,000 authorized; 84,737 shares issued and 84,571 shares outstanding at March 31, 2021, net of 166 unvested shares; and 82,294 shares issued and 82,104 shares outstanding, net of 190 unvested shares at December 31, 2020	8	8
Treasury stock, 2 shares, at cost	(97)	(97)
Additional paid-in capital	774,031	770,764
Shareholder note receivable	(2,900)	(4,000)
Accumulated other comprehensive income	(1,848)	1,204
Accumulated deficit	(660,902)	(637,999)
Total stockholders’ equity	108,292	129,880
Total liabilities and stockholders’ equity	404,503	261,223
Redeemable Preferred Stock
Current liabilities:
Redeemable preferred and contingently redeemable common stock	23,603	$ 23,603
Contingently Redeemable Common Stock
Current liabilities:
Redeemable preferred and contingently redeemable common stock	$ 131,838