| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 |
|---|---|---|---|---|---|---|
Cash flows from operating activities: | ||||||
Net loss | ||||||
-5,482 | -7,933 | -18,490 | -16,444 | -11,445 | -9,689 | -6,939 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||
Depreciation | ||||||
18 | 22 | 27 | 24 | 19 | 12 | 26 |
Amortization of right-of-use asset - operating | ||||||
71 | - | - | - | - | - | - |
Amortization of other assets | ||||||
- | - | 329 | 296 | 189 | - | - |
Amortization of premiums and discounts on marketable securities | ||||||
- | -2 | -119 | -161 | - | - | - |
Amortization of deferred charges | ||||||
- | - | - | - | - | 67 | - |
Share-based compensation | ||||||
151 | 273 | 458 | 576 | 599 | 647 | 283 |
Change in operating assets and liabilities: | ||||||
Other current assets | ||||||
-401 | -689 | -437 | 47 | -213 | -214 | -130 |
Other assets | ||||||
- | - | - | 432 | 211 | 545 | - |
Other assets | ||||||
- | - | - | - | - | - | -14 |
Accounts payable | ||||||
188 | -392 | -583 | 841 | -431 | 198 | 532 |
Accrued compensation and employee benefits | ||||||
-21 | -607 | 38 | 50 | 340 | -130 | 356 |
Accrued expenses and other liabilities | ||||||
-127 | -298 | 193 | -3 | 196 | -182 | 325 |
Other | ||||||
- | - | - | -9 | -3 | 2 | - |
Other | ||||||
- | - | - | - | - | - | 15 |
Net cash used in operating activities | ||||||
- | - | - | -14,987 | -10,534 | -9,406 | -5,288 |
Net cash used in operating activities | ||||||
-4,801 | -8,244 | -17,472 | - | - | - | - |
Cash flows from investing activities: | ||||||
Purchases of property and equipment | ||||||
4 | 4 | 3 | 12 | 11 | 19 | 32 |
Purchases of marketable securities | ||||||
- | - | 5,471 | - | - | - | - |
Purchases of marketable securities | ||||||
- | - | - | 20,504 | - | - | - |
Proceeds from maturities of marketable securities | ||||||
- | 3,050 | 18,400 | 4,102 | - | - | - |
Net cash used in investing activities | ||||||
-4 | 3,046 | 12,926 | - | - | - | - |
Cash flows from financing activities: | ||||||
Net cash provided by investing activities | ||||||
- | - | - | -16,414 | -11 | -19 | -32 |
Proceeds from the issuance of common stock | ||||||
7,281 | 3,532 | 6,551 | - | 37,000 | 9,038 | 1,741 |
Proceeds from the issuance of preferred stock | ||||||
- | - | - | - | - | - | 20,000 |
Common stock offering costs | ||||||
372 | 117 | 448 | - | 2,814 | 836 | - |
Repayment of principal on vendor finance agreement | ||||||
349 | 311 | 256 | - | 193 | 179 | 174 |
Net cash provided by financing activities | ||||||
- | - | - | - | 33,993 | 8,023 | 19,156 |
Net increase (decrease) in cash and cash equivalents | ||||||
- | - | - | -31,401 | 23,448 | -1,402 | - |
Net cash provided by financing activities | ||||||
6,560 | 3,104 | 5,847 | - | - | - | - |
Net (decrease) increase in cash and cash equivalents | ||||||
1,755 | -2,094 | - | - | - | - | - |
Net increase in cash and cash equivalents | ||||||
- | - | 1,301 | - | - | - | 13,836 |
Supplemental cash flow information: | ||||||
Interest paid | ||||||
7 | 8 | 6 | - | - | - | - |
Interest paid | ||||||
- | - | - | - | 4 | 3 | 3 |
Income tax refund received | ||||||
167 | 54 | 38 | - | - | - | - |
Supplemental disclosure of noncash investing and financing transactions: | ||||||
Common stock offering costs accrued but not yet paid | ||||||
- | - | 7 | -11 | 11 | - | - |
Leased assets obtained in exchange for operating lease liabilities, upon adoption and extension | ||||||
93 | - | - | - | - | - | - |
Change in unrealized loss on marketable securities | ||||||
- | 2 | 17 | - | - | - | - |
Change in unrealized loss on marketable securities | ||||||
- | - | - | -19 | - | - | - |
Leasehold improvement lease incentive | ||||||
- | - | - | 48 | - | - | - |