| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 |
|---|---|---|---|---|---|---|
Operating activities | ||||||
Net Income (Loss) Attributable to Parent | ||||||
-38,950 | -27,811 | -56,710 | -49,573 | -42,483 | -35,296 | -20,806 |
Adjustments to reconcile net loss to net cash used in operating activities | ||||||
Depreciation and amortization | ||||||
1,097 | 1,088 | 1,516 | 1,813 | 1,051 | 469 | 318 |
Stock-based compensation | ||||||
1,837 | 2,153 | 4,234 | 4,147 | 3,848 | 2,905 | 672 |
Allocation of proceeds to transaction expenses | ||||||
0 | 2,115 | 0 | - | - | - | - |
Change in fair value of warrant liability | ||||||
-986 | -14,757 | 0 | - | - | 725 | 222 |
Gain on sale of equipment | ||||||
29 | 78 | 22 | 0 | 0 | - | - |
Write-off of deferred financing fees | ||||||
110 | 355 | 0 | - | - | - | - |
Non-cash interest expense | ||||||
504 | 643 | 502 | 481 | 369 | 254 | 22 |
Asset impairment | ||||||
- | - | 1,028 | 0 | 0 | - | - |
Loss on debt extinguishment | ||||||
- | - | - | - | - | -435 | -200 |
Changes in operating assets and liabilities | ||||||
Prepaid expenses and other current assets | ||||||
803 | -53 | -12 | - | - | - | - |
Right of use assets, net of lease liabilities | ||||||
206 | - | - | - | - | - | - |
Restricted cash | ||||||
- | - | - | - | - | - | -97 |
Prepaid expenses and other current assets | ||||||
- | - | - | 37 | -266 | 442 | -27 |
Other non-current assets | ||||||
423 | 989 | 14 | -25 | 399 | -782 | 1,539 |
Accounts payable | ||||||
-1,106 | -2,103 | 491 | 1,190 | -1,431 | 524 | 724 |
Deferred revenue | ||||||
- | - | - | -235 | -670 | 893 | 12 |
Accrued expenses and other liabilities | ||||||
809 | -1,904 | 1,364 | 354 | 1,089 | 1,147 | 178 |
Net cash used in operating activities | ||||||
-37,734 | -41,235 | - | - | - | - | - |
Net cash used in operating activities | ||||||
- | - | -47,599 | -41,835 | -38,360 | -27,604 | -19,873 |
Investing activities | ||||||
Purchases of property and equipment | ||||||
1,135 | 241 | 1,178 | 2,538 | 2,784 | 1,520 | 389 |
Proceeds from sale of equipment | ||||||
48 | 110 | 150 | 0 | 0 | - | - |
Net cash used in investing activities | ||||||
-1,087 | -131 | - | - | - | - | - |
Proceeds from maturities of investments | ||||||
- | - | 36,090 | 79,313 | 27,498 | 0 | 0 |
Purchases of investments | ||||||
- | - | 153 | 26,064 | 89,651 | 27,053 | 0 |
Net cash used in investing activities | ||||||
- | - | 34,909 | 50,711 | -64,937 | -28,573 | -389 |
Financing activities | ||||||
Proceeds from issuance of common stock, net | ||||||
54,669 | 55,458 | - | - | - | - | 0 |
Proceeds from equity offerings, net of issuance costs | ||||||
- | - | 0 | - | - | - | 0 |
Payment of deferred financing costs | ||||||
0 | 127 | 197 | 0 | 0 | - | - |
Proceeds from long-term debt | ||||||
0 | 592 | 0 | - | - | - | - |
Proceeds from issuance of preferred stock, net | ||||||
- | - | - | - | - | - | 15,250 |
Proceeds from issuance of long-term debt, net of issuance costs | ||||||
- | - | - | 0 | 4,719 | 11,681 | 9,965 |
Repayment of long-term debt | ||||||
1,919 | 535 | 3,149 | 0 | 0 | 10,401 | 4,245 |
Proceeds from exercise of stock options | ||||||
21 | 0 | 459 | 227 | 383 | 683 | 42 |
Proceeds from the issuance of common stock under ESPP | ||||||
130 | 67 | 180 | 247 | 213 | 93 | 0 |
Proceeds from the exercise of warrants | ||||||
- | - | - | - | - | 33 | 0 |
Net cash provided by financing activities | ||||||
52,901 | 55,455 | - | - | - | - | - |
Payments made under capital lease | ||||||
- | - | - | - | - | - | 0 |
Payments for debt issuance costs | ||||||
- | - | - | - | - | - | 58 |
Net cash provided by financing activities | ||||||
- | - | -2,461 | 1,289 | 100,498 | 64,027 | 20,954 |
Net increase in cash, cash equivalents and restricted cash | ||||||
14,080 | 14,089 | -15,151 | - | - | - | - |
Net increase (decrease) in cash and cash equivalents | ||||||
- | - | - | 10,165 | -2,799 | 7,850 | 692 |
Non-cash financing activities and supplemental cash flow information | ||||||
Cash paid in connection with operating lease liabilities | ||||||
1,637 | 0 | - | - | - | - | - |
Cash paid for interest | ||||||
1,103 | 1,074 | 1,189 | - | - | - | - |
Cash paid for interest | ||||||
- | - | - | 1,255 | 897 | 815 | 426 |
Conversion of preferred stock to common stock upon closing of IPO | ||||||
- | - | - | - | - | 81,774 | 0 |
Reclassification of prepaid IPO closing costs from non-current assets to additional paid-in capital | ||||||
- | - | - | - | - | 997 | 0 |
Reclassification of warrants to additional paid-in capital | ||||||
- | - | - | - | - | 1,381 | 0 |
Accretion of redeemable convertible preferred stock to redemption value | ||||||
- | - | - | - | - | 180 | 1,605 |
Vesting of restricted stock | ||||||
- | - | - | - | - | - | 1 |
Cashless exercise of warrants | ||||||
- | - | - | - | - | 98 | 0 |
Issuance of common stock warrant | ||||||
- | - | - | - | - | 340 | 0 |
Equipment purchased under capital lease | ||||||
- | - | - | - | - | - | 0 |
Property and equipment included in accounts payable and accrued expenses | ||||||
- | - | - | 63 | 394 | 0 | 0 |
Warrants issued in connection with debt modification | ||||||
0 | 190 | 0 | - | - | - | - |
Underwritten public offering | ||||||
Proceeds from equity offerings, net of issuance costs | ||||||
- | - | 246 | - | - | - | - |