| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Nov'14 |
|---|---|---|---|---|---|---|
Conversion Of Stock [Table] | ||||||
Conversion Of Stock [Line Items] | ||||||
CASH FLOWS FROM OPERATING ACTIVITIES: | ||||||
Net loss | ||||||
-120,199 | -76,396 | -72,176 | -50,636 | -44,995 | -33,800 | -24 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||
Depreciation and amortization | ||||||
4,655 | 3,499 | 2,197 | 1,708 | 1,256 | 1,020 | - |
Stock-based compensation | ||||||
19,445 | 14,169 | 5,319 | 2,907 | 1,066 | 318 | - |
Accretion on asset retirement obligation | ||||||
43 | 33 | 40 | 36 | 8 | - | - |
Change in fair value of warrant liabilities | ||||||
-2,496 | -9,379 | 16,598 | -3 | -45 | -20 | - |
Loss on disposal of property and equipment | ||||||
-3 | -3 | -9 | -358 | -12 | -8 | - |
Inventory lower of cost and net realizable value adjustment | ||||||
0 | 340 | 911 | 1,939 | 2,578 | 598 | - |
Amortization of debt discount and interest accrual | ||||||
703 | 3,628 | 3,321 | 2,629 | 1,129 | 446 | - |
Loss on debt extinguishment | ||||||
0 | -2,416 | 0 | 0 | - | - | - |
Product upgrade reserve | ||||||
3,794 | 0 | 0 | - | - | - | - |
Write-off of deferred offering cost | ||||||
- | - | - | - | 2,920 | - | - |
Changes in operating assets and liabilities: | ||||||
Accounts receivable | ||||||
-20,050 | 16,541 | 16,126 | 3,370 | -74 | 650 | - |
Inventory | ||||||
5,951 | 32,214 | 12,329 | 2,065 | 2,413 | 3,279 | - |
Deposits on purchased inventory | ||||||
-1,685 | 1,099 | 4,521 | -1,414 | 1,138 | 479 | - |
Deferred cost of revenue | ||||||
-1,755 | -3,500 | 9,787 | -4,873 | 4,070 | 4,712 | - |
Prepaid expenses and other assets | ||||||
-2,963 | 2,343 | 2,044 | 1,633 | 733 | -13 | - |
Other assets | ||||||
- | - | - | - | - | -28 | - |
Accounts payable | ||||||
2,759 | -870 | 6,309 | 381 | -2,053 | 4,033 | 0 |
Notes payable | ||||||
- | - | - | - | -240 | - | - |
Accrued expenses and other long-term liabilities | ||||||
6,995 | -9,174 | 850 | 2,197 | 1,532 | -1,048 | - |
Customer deposits and deferred revenue | ||||||
-15,771 | -1,766 | 11,376 | 11,109 | 5,263 | 10,055 | - |
Net cash used in operating activities | ||||||
-79,567 | -122,194 | -70,053 | -28,156 | -39,849 | -27,469 | -24 |
Purchases of property and equipment | ||||||
7,760 | 3,685 | 2,163 | 7,031 | 4,151 | 2,003 | - |
Purchase of intangible asset | ||||||
57 | 0 | 0 | 12 | 104 | - | - |
Net cash used in investing activities | ||||||
-7,817 | -3,685 | -2,163 | -7,043 | -4,145 | -2,603 | - |
CASH FLOWS FROM FINANCING ACTIVITIES: | ||||||
Payment of long-term debt | ||||||
0 | 45,000 | 0 | 0 | 15,000 | - | - |
Payment on debt extinguishment fee | ||||||
0 | 172 | 0 | 0 | - | - | - |
Proceeds from director loan | ||||||
- | - | - | - | - | - | 4 |
Proceeds from offering of common stock, gross | ||||||
- | - | - | - | - | - | 24 |
Change in restricted cash balance | ||||||
- | - | - | - | -110 | 600 | - |
Proceeds from issuance of convertible notes, net | ||||||
- | - | - | - | - | 9,941 | - |
Repurchase of Series A convertible preferred stock | ||||||
- | - | - | - | - | 37 | - |
Proceeds from issuance of convertible preferred stock, net | ||||||
- | - | - | - | 15,729 | 4,969 | - |
Proceeds from draw down of long-term debt, gross | ||||||
0 | 56,000 | 0 | 15,000 | 30,000 | - | - |
Payment of debt issuance cost | ||||||
168 | 468 | 0 | 18 | 1,132 | - | - |
Proceeds from common stock private placement, gross | ||||||
0 | 0 | 26,100 | 13,750 | 29,447 | - | - |
Payments of costs related to the initial public offering | ||||||
- | - | - | - | 2,728 | 222 | - |
Proceeds from the exercise of stock options | ||||||
9,641 | 5,285 | 665 | 539 | 24 | 21 | - |
Proceeds from the exercise of warrants | ||||||
0 | 3 | 103 | 0 | 0 | - | - |
Payments for taxes related to net share settlement of equity awards | ||||||
2,410 | 0 | 0 | - | - | - | - |
Repayment of Notes Receivable from Related Parties | ||||||
- | - | - | - | - | - | 0 |
Proceeds from Contributions from Affiliates | ||||||
- | - | - | - | - | - | 0 |
Net cash (used in) provided by financing activities | ||||||
146,206 | 236,712 | 115,407 | 28,930 | 53,532 | 14,672 | 29 |
NET (DECREASE) IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH | ||||||
58,822 | 110,833 | 43,191 | -6,269 | 9,538 | -15,400 | -4 |
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: | ||||||
Cash paid for interest | ||||||
3,954 | 11,161 | 3,925 | 3,310 | 2,332 | 1,504 | - |
Cash paid for taxes | ||||||
19 | 0 | 1 | 0 | 1 | - | - |
SUPPLEMENTAL NON-CASH INVESTING AND FINANCING ACTIVITIES: | ||||||
Fair value of common stock warrants issued to placement agents as payment for service | ||||||
- | - | - | - | 316 | - | - |
Fair value of common stock warrants reclassified from liability to additional paid-in capital upon exercise | ||||||
3,975 | 1,197 | 274 | 0 | 0 | - | - |
Right-of-use assets obtained in exchange for new operating lease liabilities | ||||||
1,647 | 0 | 0 | - | - | - | - |
Transfer of property and equipment from inventory | ||||||
4,897 | 2,247 | 125 | 117 | 0 | - | - |
Conversion of convertible notes into new Series C convertible preferred stock | ||||||
- | - | - | - | - | 10,129 | - |
Purchases of property and equipment in accounts payable and accrued liabilities | ||||||
657 | 157 | 96 | 193 | 1,136 | 62 | - |
Offering costs included in accounts payable and accrued expenses | ||||||
730 | 168 | 0 | 189 | 0 | 1,197 | - |
Conversion of convertible preferred stock warrants into common stock warrants in connection with the Merger | ||||||
- | - | - | - | 160,839 | - | - |
Asset retirement obligation | ||||||
- | - | - | - | 258 | - | - |
Conversion of convertible preferred stock warrants into common stock warrants | ||||||
- | - | - | - | 93 | - | - |
Income taxes | ||||||
- | - | - | - | 2,332 | - | - |
Public Offering | ||||||
Proceeds from offering of common stock, gross | ||||||
149,559 | 172,500 | 0 | 0 | - | - | - |
Payment of offering costs related to common stock public offering | ||||||
10,416 | 10,631 | 0 | 0 | - | - | - |
At The Market Offering Program | ||||||
Proceeds from offering of common stock, gross | ||||||
0 | 278 | 40,126 | 0 | - | - | - |
Payment of offering costs related to common stock issuance | ||||||
0 | 6 | 1,147 | 0 | - | - | - |
Direct Registered Offering | ||||||
Proceeds from offering of common stock, gross | ||||||
0 | 59,100 | 49,941 | 0 | - | - | - |
Payment of offering costs related to common stock issuance | ||||||
0 | 177 | 81 | 0 | - | - | - |
Private Placement | ||||||
Payment of offering costs related to common stock issuance | ||||||
0 | 0 | 300 | 341 | - | - | - |