Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 201,543	$ 57,389
Accounts receivable	22,677	20,326
Inventory	40,547	19,375
Deposits on purchased inventory	5,565	7,043
Deferred cost of revenue	10,909	13,696
Prepaid expenses and other current assets	6,174	4,862
Total current assets	287,415	122,691
Property and equipment, net	13,452	11,564
Restricted cash	1,381	1,143
Intangible assets, net	0	78
Other assets	1,185	235
TOTAL ASSETS	303,433	135,711
Current liabilities:
Accounts payable	6,964	11,014
Accrued liabilities	13,880	7,207
Customer deposits	12,243	17,820
Deferred revenue, current portion	11,315	20,151
Total current liabilities	44,402	56,192
Deferred revenue, net of current portion	5,206	3,238
Long-term debt	44,649	44,504
Warrant liabilities	21,962	22,420
Other long-term liabilities	9,854	7,370
TOTAL LIABILITIES	126,073	133,724
Commitments and contingencies (Note 6)	0	0
Stockholders’ equity:
Convertible preferred stock, par value of $0.01 per share; 10,000,000 shares authorized at September 30, 2018 and December 31, 2017; no shares issued and outstanding at September 30, 2018 and December 31, 2017	0	0
Common stock, par value of $0.01 per share; 300,000,000 shares authorized at September 30, 2018 and December 31, 2017; 95,195,872 and 67,653,974 shares issued and outstanding at September 30, 2018 and December 31, 2017	941	666
Additional paid-in capital	558,656	321,174
Accumulated deficit	(382,237)	(319,853)
TOTAL STOCKHOLDERS’ EQUITY	177,360	1,987
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 303,433	$ 135,711