| Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 |
|---|---|---|---|---|---|---|---|
Cash flows from operating activities: | |||||||
Net loss | |||||||
-3,941 | -2,708 | -2,824 | -2,565 | -2,740 | -31,852 | -19,457 | -13,308 |
Adjustments to reconcile net loss to net cash used in operating activities: | |||||||
Depreciation and amortization | |||||||
15 | 15 | 14 | 14 | 12 | 11 | 9 | 10 |
Stock-based compensation | |||||||
95 | 10 | 0 | 0 | 678 | 0 | 0 | 2,156 |
Amortization of intangible asset | |||||||
8 | 8 | 9 | 8 | 8 | 8 | 9 | 8 |
Amortization of debt discounts | |||||||
0 | 0 | 0 | 0 | 1,591 | 11,402 | 6,870 | 7,321 |
Change in fair value of warrant liability | |||||||
-11 | -18 | -64 | -111 | -76 | 3,878 | 4,358 | -109 |
Change in fair value of derivative liability | |||||||
0 | 0 | -171 | 0 | 0 | -10,908 | -2,572 | -814 |
Expense for issuance of warrants and common stock for services | |||||||
14 | 58 | 234 | 4 | -508 | 684 | 65 | 0 |
Changes in operating assets and liabilities: | |||||||
Accounts receivable | |||||||
24 | 66 | -37 | -57 | 60 | 45 | -6 | -42 |
Inventories | |||||||
630 | -46 | 318 | 381 | 213 | 355 | 82 | 41 |
Prepaid expenses and other assets | |||||||
35 | 419 | 12 | 50 | -138 | -48 | 168 | 239 |
Accounts payable | |||||||
858 | -322 | 154 | 332 | -404 | -1,091 | 468 | 275 |
Accrued liabilities | |||||||
113 | 273 | 42 | -128 | 298 | -227 | -218 | 278 |
Accrued interest | |||||||
0 | 0 | 0 | 0 | 0 | 1,179 | 3,722 | 1,415 |
Net cash used in operating activities | |||||||
-2,578 | -3,077 | -2,557 | -2,820 | -2,866 | -3,862 | -1,846 | -1,378 |
Cash flows from investing activities: | |||||||
Purchases of property and equipment | |||||||
- | 6 | 25 | 0 | - | 34 | 17 | 19 |
Net cash used in investing activities | |||||||
-3 | -6 | -25 | 0 | -17 | -34 | -17 | -19 |
Cash flows from financing activities: | |||||||
Proceeds from issuance of convertible notes payable, net of issuance costs | |||||||
0 | 0 | 0 | 0 | 0 | 0 | 211 | 1,224 |
Taxes paid related to net share settlements of equity awards | |||||||
0 | 22 | 0 | 65 | 0 | 499 | 0 | 0 |
Net cash provided by financing activities | |||||||
2,585 | 45 | 5,584 | -65 | 0 | 9,574 | 2,213 | 1,224 |
Effect of exchange rate changes on cash and cash equivalents | |||||||
10 | 0 | -2 | -11 | -1 | -1 | 0 | -1 |
Net decrease in cash and cash equivalents | |||||||
- | - | - | -2,896 | - | - | - | -174 |
Supplemental disclosure of cash flow information: | |||||||
Cash paid for income taxes | |||||||
1 | 0 | 1 | 6 | 0 | 6 | 0 | 2 |
Noncash Investing and Financing Activities: | |||||||
Issuance of warrants in connection with convertible notes payable | |||||||
0 | 0 | 0 | 0 | -1,253 | 2,506 | 518 | 277 |
Beneficial conversion feature of convertible notes payable | |||||||
0 | 0 | 0 | 0 | 1,253 | 0 | 410 | 255 |
Conversion of accrued interest to accounts payable | |||||||
0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
Conversion of interest to convertible notes payable as principal | |||||||
0 | 0 | 0 | 0 | 0 | 1 | 5 | 4 |
Fair value of derivative liability in connection with issuance of notes payable | |||||||
0 | 0 | 0 | 0 | 0 | 6,328 | 245 | 1,313 |
Reclassification of warrant from liability to equity | |||||||
- | 0 | 0 | 0 | - | 8,926 | 0 | 192 |