| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 |
|---|---|---|---|---|---|---|---|---|---|---|
Operating activities: | ||||||||||
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | ||||||||||
-17,694 | -19,298 | -83,032 | -27,402 | -26,333 | -20,814 | -17,265 | -28,326 | -52,550 | -18,553 | -22,441 |
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: | ||||||||||
Gain on sale of available-for-sale securities | ||||||||||
- | - | - | - | - | 1 | 0 | 0 | - | - | - |
Revaluation of warrant liability | ||||||||||
- | - | - | - | - | - | - | - | - | -173 | - |
Revaluation of warrant liability | ||||||||||
- | - | - | - | - | - | - | - | - | - | -37 |
Stock-based compensation | ||||||||||
11,181 | 17,473 | 12,368 | 14,285 | 13,805 | 16,017 | 19,921 | 17,437 | 21,603 | 25,575 | 9,196 |
Depreciation and amortization | ||||||||||
10,316 | 9,187 | 10,991 | 8,319 | 10,262 | 9,263 | 10,181 | 8,562 | 7,954 | 5,015 | - |
Loss on asset retirements | ||||||||||
-2,636 | -326 | -280 | 0 | -24 | -50 | -569 | -262 | -2,449 | - | - |
Loss on retirement of property and equipment | ||||||||||
- | - | - | - | - | - | - | - | - | -77 | - |
Loss on retirement of property and equipment | ||||||||||
- | - | - | - | - | - | - | - | - | - | 0 |
Depreciation and amortization | ||||||||||
- | - | - | - | - | - | - | - | - | - | 4,942 |
Amortization of intangible assets | ||||||||||
- | - | - | 5,805 | 18,561 | 18,561 | 18,561 | 17,747 | 18,121 | 6,180 | 6,180 |
Amortization of premium (discount) relating to available-for-sale securities | ||||||||||
- | - | - | -382 | -907 | -574 | 0 | 0 | -244 | -967 | - |
Gain on sale of product line | ||||||||||
0 | 6,704 | 0 | 0 | - | - | - | - | - | - | - |
Utilization of inventory credit | ||||||||||
- | - | - | - | - | - | 1,651 | 0 | 0 | - | - |
Utilization of inventory credit | ||||||||||
- | - | - | - | - | - | - | - | 0 | - | - |
Gain on bargain purchase | ||||||||||
- | - | - | - | - | - | - | 1,029 | 0 | 0 | - |
Changes in operating assets and liabilities: | ||||||||||
Net gains on investments | ||||||||||
- | - | - | - | - | - | - | - | - | 37 | - |
Restricted cash | ||||||||||
- | - | - | - | -295 | 0 | 295 | -754 | -300 | -629 | -4,227 |
Accounts receivable, net | ||||||||||
-20,517 | -13,858 | 29,056 | 4,185 | 16,411 | -12,776 | -15,999 | 13,011 | -13,722 | -3,615 | 14,209 |
Inventory | ||||||||||
-9,998 | 20,639 | -13,016 | -3,122 | 915 | -4,319 | 6,138 | -11,308 | -8,557 | 6,001 | -4,841 |
Deferred cost of revenue | ||||||||||
- | - | - | - | -162 | -15,996 | -1 | 13,379 | -73 | -8,697 | 2,260 |
Prepaid expenses and other assets | ||||||||||
63 | -3,579 | -35,210 | 31,042 | -2,889 | 5,908 | -535 | -47 | 148 | -1,237 | 4,252 |
Accounts payable | ||||||||||
-29,440 | 4,596 | 11,759 | 4,236 | -4,021 | 467 | 6,359 | 2,554 | -7,818 | -4,367 | -3,855 |
Accrued liabilities | ||||||||||
-1,836 | 2,791 | -20,184 | 34,913 | -3,781 | 7,440 | -4,217 | -869 | -386 | -2,642 | 12,138 |
Deferred revenue | ||||||||||
2,401 | -1,426 | -14,370 | 16,398 | -422 | -21,178 | -1,804 | 26,403 | 2,781 | -11,430 | 7,664 |
Other long-term liabilities | ||||||||||
-3,362 | -183 | 246 | -412 | -363 | 513 | 62 | -782 | -313 | 41 | -744 |
Net cash provided by (used in) operating activities | ||||||||||
4,654 | 3,560 | -62,772 | 24,419 | -5,341 | 38,075 | 40,818 | 27,678 | 14,589 | 9,176 | 1,390 |
Investing activities: | ||||||||||
Purchases of property and equipment | ||||||||||
13,353 | 10,426 | 8,026 | 9,839 | 7,278 | 11,961 | 6,987 | 10,179 | 7,355 | 5,614 | 5,064 |
Purchases of marketable securities | ||||||||||
0 | 0 | 8,732 | 16,478 | 60,002 | 67,698 | 0 | 0 | - | - | 36,245 |
Sales of marketable securities | ||||||||||
0 | 0 | 5,051 | - | - | - | - | - | - | - | - |
Sales of marketable securities | ||||||||||
- | - | - | 0 | 0 | 615 | 0 | 0 | - | - | - |
Maturities of marketable securities | ||||||||||
0 | 0 | 31,441 | 38,400 | 71,945 | 3,600 | 0 | 0 | - | - | - |
Proceeds from sale of product line | ||||||||||
0 | 10,350 | 0 | 0 | - | - | - | - | - | - | - |
Purchase of marketable securities | ||||||||||
- | - | - | - | - | - | - | - | - | 79,190 | - |
Maturities of marketable securities | ||||||||||
- | - | - | - | - | - | - | - | 31,755 | 82,516 | - |
Acquisitions, net of cash acquired | ||||||||||
- | - | - | - | - | - | - | 12,000 | 60,809 | 0 | 0 |
Net cash used in investing activities | ||||||||||
-13,353 | -76 | 19,734 | 12,083 | 4,665 | -75,444 | -6,987 | -22,179 | -36,409 | -2,288 | -41,309 |
Financing activities: | ||||||||||
Proceeds from exercise of stock options | ||||||||||
442 | 384 | 62 | 17 | 638 | 1,668 | 747 | 194 | - | - | - |
Proceeds from exercise of stock options and other | ||||||||||
- | - | - | - | - | - | - | - | 804 | 288 | 60 |
Proceeds from loans | ||||||||||
- | - | - | - | - | - | - | - | - | - | 20,000 |
Proceeds from employee stock purchase plans | ||||||||||
- | - | - | 5,650 | 4,888 | 4,627 | 4,828 | 4,063 | 3,938 | 0 | - |
Proceeds from employee stock purchase plans | ||||||||||
8,433 | 7,297 | 4,878 | - | - | - | - | - | - | - | - |
Payments for repurchases of common stock | ||||||||||
- | - | - | 12,809 | 27,177 | 0 | 0 | - | - | - | - |
Taxes paid for awards vested under equity incentive plan | ||||||||||
167 | 74 | 2,764 | 2,101 | 2,352 | 2,720 | 3,441 | 1,744 | 10,376 | 10,004 | - |
Payments related to financing arrangements | ||||||||||
2,737 | 0 | 0 | - | - | - | - | - | - | - | - |
Proceeds from line of credit | ||||||||||
143,300 | 557,915 | 171,268 | 0 | 0 | - | - | - | - | - | - |
Repayment of line of credit | ||||||||||
143,300 | 557,915 | 141,268 | 0 | 0 | - | - | - | - | - | - |
Payments to originate the line of credit | ||||||||||
0 | 115 | 186 | 0 | 138 | 0 | 316 | 0 | - | - | - |
Principal payments on loans | ||||||||||
- | - | - | - | - | - | - | - | - | 20,000 | - |
Principal payments on loans | ||||||||||
- | - | - | - | - | - | - | - | - | - | 21,000 |
Proceeds from issuance of Series J preferred stock | ||||||||||
- | - | - | - | - | - | - | - | - | - | 49,478 |
Repurchase of common and preferred stock | ||||||||||
- | - | - | - | - | - | - | - | - | - | 12 |
Proceeds from initial public offering of common stock, net of issuance costs | ||||||||||
- | - | - | - | - | - | - | - | - | 57,311 | - |
Net cash provided by (used in) financing activities | ||||||||||
5,971 | 7,492 | 31,990 | -9,243 | -24,141 | 3,575 | 1,818 | 2,513 | -5,634 | 27,595 | 48,526 |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | ||||||||||
-89 | -477 | 464 | - | - | - | - | - | - | - | - |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | ||||||||||
- | - | - | -526 | -386 | -124 | 103 | 45 | 88 | 0 | 0 |
Net decrease in cash, cash equivalents and restricted cash | ||||||||||
-2,817 | 10,499 | -10,584 | 26,733 | - | - | - | - | - | - | - |
Net increase in cash and cash equivalents | ||||||||||
- | - | - | - | -25,203 | -33,918 | 35,752 | 8,057 | -27,366 | 34,483 | 8,607 |
Supplemental disclosures of cash flow information: | ||||||||||
Interest paid | ||||||||||
1,123 | 649 | 313 | 127 | - | - | - | - | - | - | - |
Interest paid | ||||||||||
- | - | - | - | 127 | 159 | 57 | 68 | 87 | 796 | 4,384 |
Income taxes paid | ||||||||||
403 | 561 | 915 | 965 | 483 | 72 | 96 | 125 | 79 | 40 | - |
Non-cash investing activities: | ||||||||||
Changes in accounts payable and accrued liabilities related to purchases of property and equipment | ||||||||||
-2,435 | 8,459 | -55 | -478 | 0 | 0 | - | - | - | - | - |
Property and equipment acquired using credits from Ericsson Inc. | ||||||||||
- | - | - | - | - | - | 125 | 0 | - | - | - |
Value of common stock issued in acquisition | ||||||||||
- | - | - | - | - | - | - | - | 117,258 | - | - |
Fair value of equity awards assumed in connection with acquisition | ||||||||||
- | - | - | - | - | - | - | - | 1,370 | - | - |
Issuance of Series I preferred stock dividends | ||||||||||
- | - | - | - | - | - | - | - | - | 900 | - |
Income taxes paid | ||||||||||
- | - | - | - | - | - | - | - | - | - | 39 |