| 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 loss | ||||||||||
-2,027 | -6,515 | -16,743 | -24,339 | - | - | - | - | - | - | - |
Net loss | ||||||||||
- | - | - | - | -20,659 | -35,151 | -20,506 | -11,427 | -4,387 | -6,091 | -10,290 |
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: | ||||||||||
Stock-based compensation expense | ||||||||||
6,470 | 4,927 | 3,490 | 2,520 | 3,659 | 2,624 | 2,435 | 2,025 | 1,872 | 1,311 | 1,192 |
Loss on dissolution of foreign subsidiary | ||||||||||
- | - | - | - | - | - | - | - | - | -85 | 0 |
Depreciation and amortization | ||||||||||
2,557 | 2,724 | 2,104 | 1,861 | 1,570 | 1,224 | 493 | 231 | 168 | 188 | 226 |
Accretion of interest expense | ||||||||||
322 | 210 | 119 | - | - | - | - | - | - | - | - |
Loss on disposal of equipment | ||||||||||
- | - | - | -262 | -167 | -39 | - | -119 | 30 | 29 | 70 |
Write-off of capitalized patent costs | ||||||||||
- | - | - | - | 31 | 0 | 65 | - | - | - | - |
Increase in inventory reserve | ||||||||||
325 | 592 | 356 | 748 | 700 | 3,550 | - | - | - | - | - |
Gain on sale of assets | ||||||||||
- | 12,500 | 860 | - | - | - | - | - | - | - | - |
Other | ||||||||||
95 | 51 | 68 | 12 | - | - | - | - | - | - | - |
Amortization of premiums and discounts on investment securities | ||||||||||
- | - | - | - | -10 | -20 | -210 | -66 | -9 | - | - |
Changes in operating assets and liabilities: | ||||||||||
Amortization of debt discount and issuance costs | ||||||||||
- | - | - | - | - | - | - | - | - | - | 206 |
Accounts receivable | ||||||||||
16,095 | 7,099 | 2,798 | 1,138 | 4,423 | 2,478 | -1,198 | -310 | 1,300 | -214 | 239 |
Inventories | ||||||||||
4,975 | 2,667 | 4,304 | 351 | 564 | 2,948 | 5,460 | 118 | 629 | -57 | 147 |
Contract assets | ||||||||||
2,793 | 4,937 | -1,268 | 574 | - | - | - | - | - | - | - |
Prepaid expenses and other assets | ||||||||||
655 | 324 | 942 | -1,922 | 934 | 617 | 1,222 | 177 | 156 | 40 | -130 |
Deferred costs | ||||||||||
- | - | - | - | -715 | 1,538 | -381 | -444 | -212 | -47 | -1,099 |
Other assets | ||||||||||
371 | - | 94 | -100 | -148 | -545 | 821 | 18 | 0 | 0 | -147 |
Accounts payable | ||||||||||
926 | 5,164 | -1,522 | 2,859 | -3,495 | 2,688 | 2,528 | 724 | 365 | -100 | -201 |
Accrued expenses and other liabilities | ||||||||||
4,888 | 5,029 | 1,122 | -582 | 906 | 221 | 2,534 | 687 | 406 | 716 | - |
Deferred revenue | ||||||||||
718 | -1,977 | -4,358 | 1,505 | - | - | - | - | - | - | - |
Accrued expenses and other current liabilities | ||||||||||
- | - | - | - | - | - | - | - | - | - | -324 |
Deferred revenue | ||||||||||
- | - | - | - | -6,030 | 5,487 | 3,196 | -3,340 | 1,543 | -2,438 | 3,171 |
Net cash provided by (used in) operating activities | ||||||||||
-10,615 | -17,322 | -23,094 | -15,195 | - | - | - | - | -1,926 | -6,079 | -5,099 |
Cash flows from investing activities: | ||||||||||
Net cash used in operating activities | ||||||||||
- | - | - | - | -28,199 | -26,333 | -14,968 | -10,472 | - | - | - |
Proceeds from sale of assets | ||||||||||
5,000 | 7,500 | 1,901 | - | - | - | - | - | - | - | - |
Proceeds from sales of equipment, molds, furniture and fixtures | ||||||||||
- | - | - | - | - | - | - | - | 30 | 29 | - |
Purchases of equipment, molds, furniture and fixtures | ||||||||||
2,350 | 854 | 1,167 | 4,880 | 5,643 | 4,663 | 2,743 | 3,256 | 350 | 89 | 11 |
Purchases of investment securities | ||||||||||
22,645 | - | 9,964 | - | 15,038 | - | 21,129 | 30,166 | 15,053 | - | 0 |
Proceeds from maturities of investment securities | ||||||||||
- | 5,000 | 5,000 | 15,000 | 6,000 | 24,000 | 24,000 | 12,000 | 0 | - | - |
Proceeds from sales of equipment, molds, furniture and fixtures | ||||||||||
- | - | - | - | - | - | - | - | - | - | 175 |
Additions to patent rights | ||||||||||
- | 40 | 101 | 127 | 1,043 | 989 | 420 | 244 | 231 | 122 | 176 |
Net cash provided by (used in) investing activities | ||||||||||
-19,995 | 11,606 | -4,331 | 9,993 | - | - | - | - | - | - | -12 |
Cash flows from financing activities: | ||||||||||
Net cash provided by (used in) investing activities | ||||||||||
- | - | - | - | -15,724 | 18,346 | -293 | -21,667 | -15,605 | -182 | - |
Proceeds from issuance of long-term debt | ||||||||||
15,000 | - | 25,000 | - | - | - | - | - | - | - | - |
Payment of debt issuance costs | ||||||||||
136 | - | 294 | - | - | - | - | - | - | - | - |
Proceeds from issuance of common stock, net | ||||||||||
7,781 | 7,114 | 0 | - | 42,851 | - | - | 53,328 | 21,280 | - | 10,527 |
Proceeds from exercise of stock options | ||||||||||
4,405 | 474 | 1,816 | 101 | 31 | - | - | - | - | - | - |
Proceeds from exercise of stock options and warrants | ||||||||||
- | - | - | - | - | 3,105 | 2,326 | 11,579 | 6,020 | 2,463 | 105 |
Taxes paid related to net share settlement of equity awards | ||||||||||
1,131 | 543 | 249 | 84 | 88 | 154 | 104 | 28 | 233 | - | 0 |
Net cash (used in) provided by financing activities | ||||||||||
- | - | - | - | 42,794 | 2,950 | 2,222 | 64,878 | - | - | - |
Effect of exchange rate changes on cash | ||||||||||
- | - | - | - | -1 | -2 | 8 | - | - | - | - |
Principal payments on notes payable | ||||||||||
- | - | - | - | - | - | - | - | - | - | -5,026 |
Net cash provided by (used in) financing activities | ||||||||||
25,919 | 7,045 | 26,273 | 17 | - | - | - | - | 27,067 | 2,463 | 5,606 |
Effect of exchange rate changes on cash | ||||||||||
- | 1 | -1 | 1 | - | - | - | - | - | - | - |
Net increase (decrease) in cash and cash equivalents | ||||||||||
-4,691 | 1,330 | -1,153 | -5,184 | - | - | - | - | - | - | - |
Effect of exchange rate changes on cash and cash equivalents | ||||||||||
- | - | - | - | - | - | - | 1 | -25 | 87 | -31 |
Net decrease in cash and cash equivalents | ||||||||||
- | - | - | - | -1,130 | -5,038 | - | 32,739 | 9,510 | -3,711 | 462 |
Net increase (decrease) in cash | ||||||||||
- | - | - | - | - | - | -13,029 | - | - | - | - |
Supplemental disclosure of cash flow information: | ||||||||||
Cash paid for interest | ||||||||||
3,025 | 2,353 | 1,080 | - | - | - | - | - | - | - | - |
Supplemental disclosure of non-cash investing activities: | ||||||||||
Gain on sales of assets recognized in excess of cash received | ||||||||||
- | 5,000 | - | - | - | - | - | - | - | - | - |
Purchases of equipment, molds, furniture and fixtures recorded in accounts payable and accrued expenses | ||||||||||
970 | 49 | 40 | 424 | 641 | 1,118 | 985 | - | 0 | - | - |
Additions to patent rights recorded in accounts payable and accrued expenses | ||||||||||
- | - | 10 | 45 | 21 | 949 | - | - | - | - | - |