Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 29,505	$ 43,531
Accounts receivable, net	209	248
Inventories, net	24,712	25,106
Prepaid expenses and other current assets	13,644	8,864
Total current assets	68,070	77,749
Property and equipment, net	138,314	181,806
Other noncurrent assets	4,868	6,510
TOTAL ASSETS	211,252	266,065
CURRENT LIABILITIES:
Accounts payable	26,539	23,972
Accrued expenses and other current liabilities	25,743	30,366
Deferred revenue	7,814	6,120
Total current liabilities	60,096	60,458
Long-term debt	53,646	53,464
Facility financing obligation	35,976	71,689
Other noncurrent liabilities	10,873	12,455
TOTAL LIABILITIES	160,591	198,066
STOCKHOLDERS’ EQUITY (DEFICIT):
Additional paid-in capital	602,783	599,976
Accumulated deficit	(552,124)	(531,979)
TOTAL STOCKHOLDERS’ EQUITY (DEFICIT)	50,661	67,999
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY (DEFICIT)	211,252	266,065
Class A
STOCKHOLDERS’ EQUITY (DEFICIT):
Common Stock	1	1
Class B
STOCKHOLDERS’ EQUITY (DEFICIT):
Common Stock	$ 1	$ 1