| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 |
|---|---|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities: | ||||||||||
Net Income (Loss) Attributable to Parent | ||||||||||
-9,077 | -3,913 | -3,560 | -11,107 | -10,570 | -9,960 | -8,870 | -5,694 | -6,566 | 373 | 6,455 |
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: | ||||||||||
Stock-based compensation | ||||||||||
6,649 | 5,683 | 4,243 | 2,662 | 3,921 | 5,302 | 3,008 | 2,164 | 2,011 | 1,204 | 1,024 |
Depreciation and amortization | ||||||||||
3,837 | 3,555 | 3,577 | 3,466 | 4,263 | 4,514 | 4,409 | 4,735 | 5,114 | - | - |
Amortization of acquired intangible assets | ||||||||||
1,504 | 1,596 | 665 | 0 | 0 | - | - | - | - | - | - |
Reversal of uncertain tax positions | ||||||||||
124 | 19 | 191 | 170 | 323 | 270 | 452 | 1,455 | 967 | 6,194 | 1,819 |
Depreciation and amortization | ||||||||||
- | - | - | - | - | - | - | - | - | 4,537 | 4,607 |
Gain on sale of marketable securities | ||||||||||
- | - | - | - | - | - | - | - | 264 | 1,397 | - |
Amortization of debt issuance costs | ||||||||||
- | - | - | - | - | - | - | - | 31 | 74 | 124 |
Other non-cash tax expense | ||||||||||
- | - | - | - | - | - | - | - | 26 | -26 | 0 |
Amortization of acquired developed technology | ||||||||||
- | - | - | - | - | - | - | - | - | 1,050 | 2,336 |
Accretion on short-term marketable securities | ||||||||||
94 | 44 | 0 | 0 | - | - | - | - | -17 | -98 | 24 |
Deferred income tax benefit | ||||||||||
45 | -62 | 4 | 22 | 23 | 89 | 154 | -110 | 23 | 247 | 68 |
Gain on asset disposal | ||||||||||
- | - | - | - | - | - | 12 | -187 | 0 | 0 | - |
Gain on sale of marketable securities | ||||||||||
- | - | - | - | - | - | - | - | - | - | 0 |
Gain on sale of patents | ||||||||||
3,905 | 0 | 0 | - | - | - | - | - | 1,600 | 0 | 0 |
Inventory step-up and backlog amortization | ||||||||||
12 | 475 | 1,965 | 0 | 0 | - | - | - | - | - | - |
Gain on debt extinguishment | ||||||||||
0 | 1,272 | 29 | 0 | 0 | - | - | - | - | - | 12,860 |
Discount accretion on convertible debt fair value | ||||||||||
0 | 69 | 196 | 0 | 0 | - | - | - | - | - | - |
Fair value adjustment on convertible debt conversion option | ||||||||||
0 | 0 | -743 | 0 | 0 | - | - | - | - | - | - |
Write off of certain assets to restructuring | ||||||||||
- | - | - | 1,744 | 0 | 0 | - | - | - | - | - |
Other | ||||||||||
3 | -11 | -71 | -47 | -53 | -72 | -61 | -63 | -11 | -52 | 59 |
Changes in operating assets and liabilities, net of acquisition: | ||||||||||
Accounts receivable, net | ||||||||||
3,933 | 2,342 | 554 | -2,870 | 1,340 | -113 | 989 | -785 | 70 | -1,132 | -530 |
Inventories | ||||||||||
2,459 | 531 | -1,378 | -179 | 368 | 1,235 | -1,039 | -1,405 | -751 | -1,300 | 1,177 |
Prepaid expenses and other current and long-term assets, net | ||||||||||
-2,172 | -110 | -650 | 166 | -163 | -2,253 | 637 | -1,368 | -875 | -1,117 | -931 |
Accounts payable | ||||||||||
-1,304 | 675 | -2,063 | -1,210 | -210 | 1,827 | -937 | -2,410 | -399 | -3,106 | 3,389 |
Accrued current and long-term liabilities | ||||||||||
-3,686 | -2,890 | 4,206 | 101 | 346 | -1,446 | 1,837 | 187 | -274 | -303 | -2,377 |
Income taxes payable | ||||||||||
-14 | -146 | 898 | 27 | 195 | 429 | 207 | 559 | 546 | 479 | 672 |
Net cash provided by (used in) operating activities | ||||||||||
-10,380 | 955 | 12,199 | -1,535 | -3,847 | 1,688 | -1,182 | 1,784 | -735 | 637 | 1,986 |
Cash flows from investing activities: | ||||||||||
Proceeds from sale of patents | ||||||||||
- | - | - | - | - | - | - | - | 1,600 | - | - |
Purchases of available-for-sale marketable securities | ||||||||||
- | 8,177 | 0 | 0 | - | - | - | - | - | 16,964 | 15,110 |
Proceeds from sales of property and equipment | ||||||||||
- | - | - | - | - | - | 13 | 0 | 11 | 6 | 2 |
Proceeds from sales and maturities of short-term marketable securities | ||||||||||
10,050 | 2,150 | 0 | 0 | - | - | - | - | 12,961 | 17,485 | 13,195 |
Purchases of short-term marketable securities | ||||||||||
10,856 | - | - | - | - | - | - | - | - | - | - |
Purchases of property and equipment | ||||||||||
2,629 | 2,096 | 2,484 | 2,144 | 3,012 | 2,861 | 1,694 | 1,835 | 2,636 | 1,795 | 1,481 |
Proceeds from sale of patents | ||||||||||
4,250 | 0 | 0 | - | - | - | - | - | - | - | - |
Proceeds from sale of patents | ||||||||||
- | - | - | - | - | - | - | - | - | 0 | 0 |
Purchases of licensed technology | ||||||||||
521 | 0 | 0 | - | 55 | 0 | 598 | 0 | 100 | 480 | 102 |
Payment associated with sale of patents | ||||||||||
345 | 0 | 0 | - | - | - | - | - | - | - | - |
Cash received in connection with acquisition of business | ||||||||||
0 | 0 | 1,901 | 0 | 0 | - | - | - | - | - | - |
Net cash provided by investing activities | ||||||||||
-51 | -8,123 | -583 | -2,144 | -3,067 | -2,861 | -2,279 | -1,835 | 11,836 | -1,748 | -3,496 |
Cash flows from financing activities: | ||||||||||
Payments on convertible debt | ||||||||||
0 | 2,220 | 1,000 | 0 | 0 | - | - | - | - | - | - |
Payments on line of credit related to acquisition | ||||||||||
0 | 0 | 4,046 | 0 | 0 | - | - | - | - | - | - |
Payments on line of credit | ||||||||||
- | - | - | -3,000 | 0 | 0 | 3,000 | 0 | -3,000 | -3,000 | 0 |
Repurchase of debentures | ||||||||||
- | - | - | - | - | - | - | - | - | - | 31,532 |
Net proceeds from equity offering | ||||||||||
- | - | - | - | 16,356 | 0 | 9,625 | 0 | 8,327 | 0 | 0 |
Proceeds from issuance of common stock under employee equity incentive plans | ||||||||||
570 | 1,683 | 3,004 | 1,077 | 990 | 1,307 | 480 | 444 | 331 | 201 | 18 |
Payments on asset financings | ||||||||||
826 | 1,874 | 1,673 | 1,367 | 1,767 | 3,013 | 2,243 | 2,081 | 2,760 | 3,015 | 2,161 |
Repurchase of debentures | ||||||||||
- | - | - | - | - | - | - | - | 15,779 | 0 | - |
Repurchase of common stock | ||||||||||
- | - | - | - | - | - | - | - | - | - | 167 |
Net cash provided by financing activities | ||||||||||
-256 | -2,411 | -3,715 | -3,290 | 15,579 | -1,706 | 10,862 | -1,637 | -12,881 | 186 | -33,842 |
Net increase (decrease) in cash and cash equivalents | ||||||||||
-10,687 | -9,579 | 7,901 | -6,969 | 8,665 | -2,879 | 7,401 | -1,688 | -1,780 | -925 | -35,352 |
Supplemental disclosure of cash flow information: | ||||||||||
Cash paid for income taxes, net of refunds received | ||||||||||
547 | 657 | 160 | 437 | 366 | 213 | 382 | - | - | - | - |
Cash paid during the period for interest | ||||||||||
142 | 501 | 418 | - | - | - | - | - | - | - | - |
Non-cash investing and financing activities: | ||||||||||
Cash paid during the period for interest | ||||||||||
- | - | - | 139 | 104 | 193 | 149 | - | - | - | - |
Non-cash investing and financing activities: | ||||||||||
Acquisitions of property and equipment and other assets under extended payment terms | ||||||||||
934 | 501 | 3,558 | 0 | 765 | 3,381 | 1,266 | - | - | - | - |
Value of debt converted into shares | ||||||||||
0 | 2,646 | 329 | 0 | 0 | - | - | - | - | - | - |
Value of shares issued in acquisition | ||||||||||
0 | 0 | 16,975 | 0 | 0 | - | - | - | - | - | - |