| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 |
|---|---|---|---|---|---|---|
Operating activities: | ||||||
Net loss | ||||||
-7,830 | -7,288 | -7,470 | -11,791 | -14,342 | -19,387 | -10,153 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||
Change in valuation of liabilities at fair value | ||||||
- | - | - | - | - | 20 | 1,120 |
Change in valuation of financial instruments associated with stock purchase agreement | ||||||
- | - | - | - | 51 | 342 | 98 |
Depreciation | ||||||
20 | 29 | 32 | 133 | 210 | 174 | 70 |
Gain on disposal of property and equipment | ||||||
38 | - | - | 12 | - | - | - |
Gain on sale of patents | ||||||
- | - | - | - | - | - | 5,500 |
Stock-based compensation | ||||||
466 | 331 | 266 | 782 | 745 | 1,223 | 357 |
Changes in lease liability | ||||||
-71 | - | - | - | - | - | - |
Changes in operating assets and liabilities: | ||||||
Prepaid expenses and other assets | ||||||
-214 | 327 | -1,232 | -439 | -342 | 1,700 | 1,201 |
Accounts payable and other current liabilities | ||||||
-2,208 | 554 | -1,540 | 370 | -1,466 | 666 | -750 |
Net cash used in operating activities | ||||||
- | - | - | -10,079 | -14,460 | -18,702 | -18,199 |
Net cash used in operating activities | ||||||
-9,447 | -6,701 | -7,480 | - | - | - | - |
Investing activities: | ||||||
Purchase of property, plant and equipment | ||||||
10 | 39 | 13 | 3 | 34 | 309 | 208 |
Proceeds from sale of property and equipment | ||||||
38 | 16 | - | 12 | - | - | - |
Minimum royalty payments received from termination of ALIGN license agreement | ||||||
- | - | - | - | -96 | -384 | -396 |
Proceeds from sale of patents | ||||||
- | - | - | - | - | - | 5,500 |
Net cash used in investing activities | ||||||
- | - | - | 9 | 62 | 75 | 5,688 |
Net cash provided by (used in) investing activities | ||||||
28 | -39 | -13 | - | - | - | - |
Financing activities: | ||||||
Proceeds from issuing common stock, net of issuance costs (Payments of issuance costs) | ||||||
4,049 | 630 | 14,749 | 6,794 | 11,061 | 12,421 | 27,637 |
Proceeds from the exercise of stock options and warrants, net of issuance costs | ||||||
- | - | 200 | - | - | - | - |
Proceeds from the exercise of stock options and warrants, net of issuance costs | ||||||
- | - | - | - | - | -21 | - |
Payment of preferred stock dividend | ||||||
201 | 201 | 201 | 200 | 201 | 200 | 305 |
Net cash provided by (used in) financing activities | ||||||
3,848 | 429 | 14,748 | - | - | - | - |
Effect of exchange rate changes on cash and cash equivalents | ||||||
-48 | -95 | - | - | - | - | - |
Net (decrease) in cash and cash equivalents | ||||||
-5,619 | -6,406 | - | - | - | - | - |
Net cash provided by / (used in) financing activities | ||||||
- | - | - | 6,594 | 10,860 | 12,200 | 27,332 |
Effect of exchange rate changes on cash and cash equivalents | ||||||
- | - | 135 | -444 | -211 | -530 | -87 |
Net (decrease) in cash and cash equivalents | ||||||
- | - | 7,390 | -3,920 | -3,749 | -6,957 | - |
Net decrease in cash and cash equivalents | ||||||
- | - | - | - | - | - | 14,734 |
Supplemental cash flow information: | ||||||
Interest | ||||||
- | - | 118 | - | - | - | - |
Cash received during the period for: Interest | ||||||
224 | 238 | - | 38 | 10 | 6 | 12 |
Cash received during the period for: Taxes | ||||||
1,163 | 1,158 | - | - | 2,861 | 1,811 | 970 |
Lease liability | ||||||
-1,505 | - | - | - | - | - | - |
Right-of-use asset | ||||||
1,385 | - | - | - | - | - | - |
Taxes | ||||||
- | - | 1,815 | 1,965 | - | - | - |
Net cash provided by investing activities | ||||||
- | - | - | - | - | 384 | - |
Non cash financing activities: | ||||||
Accrual of preferred stock dividends | ||||||
50 | 50 | 50 | 50 | 50 | 50 | - |
Issuance of Ordinary shares in lieu of cash bonus | ||||||
- | - | - | - | - | - | 181 |