| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Mar'11 | Mar'10 |
|---|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities: | |||||||||
Net income | |||||||||
21,411 | 16,617 | 28,353 | 11,681 | 9,345 | 8,170 | 16,093 | 14,156 | -43 | -4,063 |
Adjustments to reconcile net income to net cash provided by operating activities: | |||||||||
Depreciation and amortization | |||||||||
20,868 | 15,778 | 10,507 | 5,334 | 4,594 | 4,020 | 3,114 | 3,508 | 1,674 | 1,378 |
Non-cash interest expense | |||||||||
7,536 | 4,248 | 3,977 | 2,274 | - | - | - | - | - | - |
Stock-based compensation expense | |||||||||
12,847 | 10,192 | 6,747 | 4,595 | 3,598 | 1,766 | 1,060 | 1,024 | 1,003 | 1,006 |
Deferred tax expense | |||||||||
-624 | 71 | -24,679 | -4,092 | -118 | 295 | 2,788 | -3,143 | - | - |
Loss on extinguishment of debt | |||||||||
-5,700 | - | - | - | - | - | - | - | - | - |
Gain on bargain purchase | |||||||||
- | - | - | - | - | - | - | 314 | - | - |
Loss on revaluation of contingent consideration | |||||||||
-663 | 3 | -64 | 3,242 | 4,083 | 2,072 | 91 | 610 | - | - |
Loss on disposal of assets | |||||||||
- | - | - | - | -1 | -35 | -2 | - | -5 | -0 |
Changes in operating assets and liabilities, excluding impact of acquisitions: | |||||||||
Accounts receivable | |||||||||
7,726 | 6,101 | 6,888 | 3,222 | 3,729 | 1,597 | 774 | 1,211 | 689 | 29 |
Royalties and other receivables | |||||||||
104 | -7 | -644 | 652 | -158 | -6,557 | -2,400 | 5,923 | 216 | 259 |
Unbilled receivables | |||||||||
-2,146 | 2,602 | 0 | - | - | - | - | - | - | - |
Inventories | |||||||||
9,314 | 4,042 | -605 | 6,163 | 6,149 | 860 | 626 | -2,734 | -247 | -212 |
Prepaid expenses and other assets | |||||||||
661 | 1,769 | 1,304 | -612 | 277 | 820 | -58 | -30 | -986 | 545 |
Operating lease right of use assets | |||||||||
4,662 | - | - | - | - | - | - | - | - | - |
Accounts payable | |||||||||
662 | 2,266 | 807 | -1,802 | 3,024 | 2,288 | -734 | 1,001 | -60 | -931 |
Accrued expenses | |||||||||
13,096 | -1,398 | -1,993 | -4,038 | -1,592 | -2,489 | 1,257 | 2,083 | 383 | 782 |
Operating lease liability | |||||||||
5,447 | - | - | - | - | - | - | - | - | - |
Long-term liabilities | |||||||||
-19 | -494 | 611 | -240 | 2,115 | -1,036 | 1,201 | -1,110 | -58 | 0 |
Total cash provided by operating activities | |||||||||
67,216 | 32,770 | 17,451 | 7,521 | 15,053 | 18,401 | 25,930 | 13,439 | 3,231 | -2,448 |
Cash flows from investing activities: | |||||||||
Purchases of marketable securities | |||||||||
- | - | 47 | 23,700 | 20,168 | 27,508 | 42,480 | 39,109 | 84,329 | 47,038 |
Redemption of marketable securities | |||||||||
- | - | 19,600 | 23,400 | 27,587 | 34,804 | 29,209 | 43,214 | 83,650 | 59,336 |
Additions to capitalized software costs | |||||||||
4,650 | 2,147 | - | - | - | - | - | - | - | - |
Developed technology intangible asset payment | |||||||||
- | 1,255 | - | - | - | - | - | - | - | - |
Acquisition of assets of Refine Technology, LLC | |||||||||
- | - | - | - | - | 21,236 | - | - | - | - |
Increase of restricted cash | |||||||||
- | - | - | - | - | 250 | - | - | - | - |
Proceeds from sale of fixed asset | |||||||||
- | - | - | 45 | - | - | - | - | - | - |
Purchases of property, plant and equipment | |||||||||
18,504 | 10,635 | 5,454 | 4,325 | 2,628 | 5,602 | 4,635 | 1,263 | 524 | 597 |
Total cash used in investing activities | |||||||||
-205,308 | -14,037 | -98,696 | -49,194 | 4,791 | -19,792 | -17,906 | 2,840 | -1,503 | 9,921 |
Proceeds from issuance of convertible debt, net | |||||||||
278,466 | - | - | 111,070 | - | - | - | - | - | - |
Proceeds from issuance of common stock, net | |||||||||
320,713 | - | 129,309 | - | - | - | - | - | - | - |
Exercise of stock options | |||||||||
1,167 | 3,418 | 2,351 | 1,841 | 866 | 1,680 | 2,450 | 1,159 | 6 | 53 |
Repayment of senior convertible notes | |||||||||
114,989 | 11 | - | - | - | - | - | - | - | - |
Payment of tax withholding obligation on vesting of restricted stock | |||||||||
490 | - | 1,715 | - | - | - | - | - | - | - |
Excess tax benefit on exercise of stock options | |||||||||
- | - | - | - | - | - | 72 | - | - | - |
Payments of contingent consideration | |||||||||
- | - | - | 798 | 99 | - | - | - | - | - |
Principal payments under capital lease obligations | |||||||||
- | - | - | - | - | - | - | - | 56 | 42 |
Total cash provided by financing activities | |||||||||
484,867 | 3,407 | 129,945 | 112,113 | 767 | 1,680 | 2,522 | 1,159 | -50 | 11 |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | |||||||||
-3,190 | -2,077 | 2,376 | -2,299 | -1,882 | -4,756 | 74 | 602 | - | - |
Net increase in cash, cash equivalents and restricted cash | |||||||||
343,585 | 20,063 | 51,076 | 68,141 | 18,729 | -4,467 | 10,620 | 18,042 | 1,677 | 7,484 |
Supplemental disclosure of cash flow information: | |||||||||
Income taxes paid | |||||||||
6,505 | 4,046 | 4,021 | 3,993 | 4,948 | 2,547 | 1,264 | 140 | - | - |
Interest paid | |||||||||
1,484 | 2,444 | 2,444 | 1,222 | - | - | - | - | - | - |
Income taxes refunded | |||||||||
- | - | - | - | - | - | - | - | - | 135 |
Supplemental disclosure of non-cash investing and financing activities: | |||||||||
Assets acquired under operating leases | |||||||||
8,663 | - | - | - | - | - | - | - | - | - |
Fair value of 2,316,229 shares of common stock issued for conversion of convertible notes | |||||||||
198,757 | - | - | - | - | - | - | - | - | - |
Non-cash effect of adoption of ASU 2016-16 | |||||||||
- | 5,609 | - | - | - | - | - | - | - | - |
Property, plant and equipment related to lease incentives | |||||||||
- | 2,270 | - | - | - | - | - | - | - | - |
Payment of contingent consideration in common stock | |||||||||
- | - | 1,063 | 875 | - | - | - | - | - | - |
Spectrum Lifesciences Inc | |||||||||
Acquisition of assets, net of cash acquired | |||||||||
- | - | 112,795 | - | - | - | - | - | - | - |
Fair value of common stock issued for acquisition | |||||||||
- | - | 247,575 | - | - | - | - | - | - | - |
C Technologies Inc | |||||||||
Acquisition of assets, net of cash acquired | |||||||||
182,154 | - | - | - | - | - | - | - | - | - |
Fair value of common stock issued for acquisition | |||||||||
53,938 | - | - | - | - | - | - | - | - | - |
Atoll GmbH | |||||||||
Acquisition of assets, net of cash acquired | |||||||||
- | - | - | 8,767 | - | - | - | - | - | - |
Common stock tendered for acquisition of assets | |||||||||
- | - | - | 14,135 | - | - | - | - | - | - |
TangenX Technology Corporation | |||||||||
Acquisition of assets, net of cash acquired | |||||||||
- | - | - | 35,847 | - | - | - | - | - | - |