| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 |
|---|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities | |||||||||
Net loss | |||||||||
-17,980 | -9,674 | -10,897 | -11,400 | -17,106 | -28,297 | -10,465 | 2,893 | -2,479 | 1,210 |
Adjustments to reconcile net loss to net cash used in operating activities: | |||||||||
Depreciation and amortization | |||||||||
7,289 | 7,662 | 7,643 | 3,770 | 3,271 | 3,014 | 2,542 | 2,615 | 2,010 | 732 |
Amortization of purchased intangibles | |||||||||
- | - | - | - | - | - | - | - | - | 223 |
Non-cash interest income | |||||||||
- | - | - | - | - | - | 71 | 18 | 0 | 0 |
Loss on disposal of property and equipment | |||||||||
- | - | - | - | - | - | 0 | -27 | 0 | 0 |
Bad debt expense | |||||||||
- | - | - | - | - | - | 16 | 0 | -10 | - |
Allowance for doubtful accounts | |||||||||
- | - | - | - | - | - | - | - | - | 10 |
Inventory provision | |||||||||
67 | 362 | 380 | 168 | 118 | 310 | 136 | 224 | 563 | 0 |
Change in lease-related performance liabilities | |||||||||
-1,173 | -998 | -864 | -811 | -925 | -595 | -207 | -3 | 0 | - |
Stock-based compensation expense | |||||||||
23,865 | 20,964 | 18,196 | 12,035 | 11,005 | 11,084 | 8,667 | 4,232 | 1,458 | 507 |
Amortization of debt discount and issuance costs | |||||||||
6,638 | 3,899 | 0 | 0 | - | - | - | - | - | - |
NoncashCompensationAcquisitionRelatedExpenses | |||||||||
- | - | - | 2,632 | 0 | 0 | - | - | - | - |
Other | |||||||||
1,016 | 22 | 26 | 42 | 519 | 131 | - | - | - | - |
Non-employee stock-based compensation expense | |||||||||
- | - | - | - | - | - | - | - | - | 1 |
Excess tax benefits from employee stock plans | |||||||||
- | - | - | - | - | - | - | 325 | 0 | 0 |
Change in fair value of warrant liability | |||||||||
- | - | - | - | - | - | - | -1,631 | -981 | 325 |
Change in fair value of option liability | |||||||||
- | - | - | - | - | - | - | - | 450 | 99 |
Changes in operating assets and liabilities: | |||||||||
Accounts receivable | |||||||||
2,420 | 5,017 | 10,963 | 322 | 5,075 | -5,660 | 1,861 | 5,916 | 6,670 | 1,571 |
Other receivables | |||||||||
2,064 | 2,810 | 120 | -120 | 234 | -188 | 434 | -417 | 74 | 227 |
Inventories | |||||||||
293 | 1,898 | -1,361 | 1,985 | -632 | -1,894 | 3,029 | -367 | 1,103 | 1,672 |
Prepaid expenses and other assets | |||||||||
880 | 592 | 866 | 833 | 295 | 330 | -446 | 1,348 | 263 | 495 |
Deferred commissions | |||||||||
174 | 2 | -121 | 1,538 | - | - | - | - | - | - |
Other long term assets | |||||||||
- | - | - | - | - | - | - | - | - | -13 |
Accounts payable | |||||||||
1,475 | 1,527 | -611 | 170 | 1,050 | -1,678 | 690 | -1,145 | 2,969 | -114 |
Increase (Decrease) in Other Accrued Liabilities | |||||||||
-2,431 | -2,629 | -1,104 | 2,355 | 2,761 | 1,100 | -1,887 | 2,803 | 1,379 | - |
Deferred revenue | |||||||||
2,843 | 3,482 | 5,434 | 6,863 | 4,144 | 2,827 | 4,198 | 5,840 | 6,301 | 3,311 |
Accrued liabilities | |||||||||
- | - | - | - | - | - | - | - | - | 2,829 |
Warranty reserve | |||||||||
- | - | - | - | - | - | - | - | - | 33 |
Other long-term liabilities | |||||||||
- | - | - | - | - | - | - | - | - | -432 |
Net cash used in operating activities | |||||||||
15,778 | 14,298 | 7,736 | 11,266 | -135 | -4,692 | -1,259 | 12,294 | 5,512 | 4,782 |
Cash flows from investing activities | |||||||||
Purchase of property and equipment | |||||||||
4,576 | 4,892 | 2,834 | 4,707 | 1,151 | 2,022 | 3,770 | 2,565 | 2,392 | 672 |
Payments to Acquire Businesses, Net of Cash Acquired | |||||||||
- | - | - | 52,500 | 0 | 6,950 | 0 | 0 | - | 8,776 |
Purchase of short-term investments | |||||||||
137,508 | 206,824 | 67,426 | 86,551 | 109,310 | 112,299 | 118,661 | 104,869 | 0 | 0 |
Maturities of short-term investments | |||||||||
121,548 | 72,183 | 53,831 | 111,809 | 106,670 | 102,656 | 65,714 | 69,902 | 0 | 0 |
Sale of short-term investments | |||||||||
- | - | - | 32,061 | 0 | 3,923 | 0 | 0 | - | - |
Changes in restricted cash | |||||||||
- | - | - | - | -40 | -265 | 0 | 0 | 62 | 1 |
Proceeds from disposal of fixed assets | |||||||||
- | - | - | - | - | - | - | - | - | 0 |
Net cash used in investing activities | |||||||||
-20,536 | -139,533 | -16,429 | 112 | -3,751 | -14,427 | -56,717 | -37,532 | -2,454 | -9,449 |
Cash flows from financing activities | |||||||||
Cash from lease-related performance obligations | |||||||||
1,735 | 340 | 693 | 1,596 | 932 | 635 | 847 | 1,114 | 0 | 0 |
Proceeds from issuance of convertible senior notes, net of issuance costs | |||||||||
0 | 138,854 | 0 | 0 | - | - | - | - | - | - |
Payment for purchase of capped calls | |||||||||
0 | 8,907 | 0 | 0 | - | - | - | - | - | - |
Proceeds from borrowings | |||||||||
- | - | - | - | - | - | - | - | 4,500 | 5,003 |
Principal payment of borrowings | |||||||||
- | - | - | - | - | - | - | 8,333 | 1,572 | 1,866 |
Proceeds from initial public offering, net of offering costs | |||||||||
- | - | - | - | - | - | - | 72,070 | 0 | 0 |
Proceeds from secondary public offering, net of offering costs | |||||||||
- | - | - | - | - | - | - | 35,975 | 0 | 0 |
Payment for repurchase of common stock | |||||||||
- | - | - | - | - | 12 | 14 | 10 | 4 | 0 |
Excess tax benefits from employee stock plans | |||||||||
- | - | - | - | - | - | - | 325 | 0 | 0 |
Proceeds from issuance of common stock from the employee stock purchase plan | |||||||||
3,472 | 3,269 | 2,750 | 1,690 | 1,302 | 1,588 | 2,993 | 0 | 0 | - |
Proceeds from exercise of stock options | |||||||||
2,440 | 7,327 | 7,917 | 2,502 | 1,195 | 1,096 | 1,758 | 1,720 | 1,811 | 1,241 |
Tax withholdings paid on behalf of employees for net share settlement | |||||||||
11,461 | 10,098 | 8,974 | 2,705 | 1,697 | 1,225 | 703 | 0 | 0 | - |
Proceeds from Warrant Exercises | |||||||||
- | - | - | - | 111 | 0 | 226 | 0 | 0 | 0 |
Proceeds from preferred stock warrants | |||||||||
- | - | - | - | - | - | - | - | 2 | - |
Common stock issuance costs | |||||||||
- | - | - | - | - | - | - | - | 1,539 | 0 |
Net cash provided by financing activities | |||||||||
-3,814 | 130,785 | 2,386 | 3,083 | 1,843 | 2,082 | 5,107 | 102,861 | 3,198 | 4,378 |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect | |||||||||
-8,572 | 5,550 | -6,307 | 14,461 | -2,043 | -17,037 | -52,869 | 77,623 | 6,256 | -289 |
Supplemental cash flow information | |||||||||
Interest Paid, Including Capitalized Interest, Operating and Investing Activities | |||||||||
2,156 | 1,066 | 0 | 0 | - | 0 | 0 | 91 | 314 | 71 |
Cash paid for income taxes | |||||||||
345 | 216 | 342 | 245 | 159 | 175 | 54 | 556 | 0 | 0 |
Supplemental disclosure of non-cash investing and financing activities: | |||||||||
Issuance of stock and stock options in business acquisitions | |||||||||
- | - | - | - | - | - | - | - | - | 879 |
Costs related to the initial public offering in accounts payable and accrued liabilities | |||||||||
- | - | - | - | - | - | - | - | 86 | 0 |
Property and equipment in accounts payable and accrued liabilities | |||||||||
458 | 114 | 102 | 44 | 64 | 16 | 104 | 321 | 165 | 0 |