| Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 |
|---|---|---|---|---|---|---|---|
Cash flows from operating activities: | |||||||
Net loss | |||||||
-12,038 | -10,837 | -39,981 | -56,614 | -67,357 | 0 | 0 | 0 |
Adjustments to reconcile net loss to net cash used in operating activities: | |||||||
Depreciation and amortization | |||||||
58 | 55 | 51 | 46 | 42 | 0 | 0 | 0 |
Stock-based compensation | |||||||
105 | 688 | 678 | 678 | 2,834 | 0 | 0 | 0 |
Amortization of intangible asset | |||||||
33 | 33 | 33 | 33 | 33 | 0 | 0 | 0 |
Amortization of debt discounts | |||||||
0 | 1,591 | 12,993 | 19,863 | 27,184 | 0 | 0 | 0 |
Change in fair value of warrant liability | |||||||
-204 | -269 | 3,627 | 8,049 | 8,051 | 0 | 0 | 0 |
Change in fair value of derivative liability | |||||||
-171 | -171 | -11,079 | -13,480 | -14,294 | 0 | 0 | 0 |
Expense for issuance of warrants and common stock for services | |||||||
310 | -212 | 414 | 245 | 241 | 0 | 0 | 0 |
Changes in operating assets and liabilities: | |||||||
Accounts receivable | |||||||
-4 | 32 | 11 | 42 | 57 | 0 | 0 | 0 |
Inventories | |||||||
1,283 | 866 | 1,267 | 1,031 | 691 | 0 | 0 | 0 |
Prepaid expenses and other assets | |||||||
516 | 343 | -124 | 32 | 221 | 0 | 0 | 0 |
Accounts payable | |||||||
1,022 | -240 | -1,009 | -695 | -752 | 0 | 0 | 0 |
Accrued liabilities | |||||||
300 | 485 | -15 | -275 | 131 | 0 | 0 | 0 |
Accrued interest | |||||||
0 | 0 | 1,179 | 4,901 | 6,316 | 0 | 0 | 0 |
Net cash used in operating activities | |||||||
-11,032 | -11,320 | -12,105 | -11,394 | -9,952 | 0 | 0 | 0 |
Cash flows from investing activities: | |||||||
Purchases of property and equipment | |||||||
- | 0 | 0 | 67 | - | 0 | 0 | 0 |
Net cash used in investing activities | |||||||
-34 | -48 | -76 | -68 | -87 | 0 | 0 | 0 |
Cash flows from financing activities: | |||||||
Proceeds from issuance of convertible notes payable, net of issuance costs | |||||||
0 | 0 | 0 | 211 | 1,435 | 0 | 0 | 0 |
Taxes paid related to net share settlements of equity awards | |||||||
87 | 87 | 564 | 564 | 499 | 0 | 0 | 0 |
Net cash provided by financing activities | |||||||
8,149 | 5,564 | 15,093 | 11,722 | 13,011 | 0 | 0 | 0 |
Effect of exchange rate changes on cash and cash equivalents | |||||||
-3 | -14 | -15 | -13 | -3 | 0 | 0 | 0 |
Net decrease in cash and cash equivalents | |||||||
- | - | - | 246 | - | - | - | 0 |
Supplemental disclosure of cash flow information: | |||||||
Cash paid for income taxes | |||||||
8 | 7 | 13 | 12 | 8 | 0 | 0 | 0 |
Noncash Investing and Financing Activities: | |||||||
Issuance of warrants in connection with convertible notes payable | |||||||
0 | -1,253 | 1,253 | 1,771 | 2,048 | 0 | 0 | 0 |
Beneficial conversion feature of convertible notes payable | |||||||
0 | 1,253 | 1,253 | 1,663 | 1,918 | 0 | 0 | 0 |
Conversion of accrued interest to accounts payable | |||||||
0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 |
Conversion of interest to convertible notes payable as principal | |||||||
0 | 0 | 1 | 6 | 10 | 0 | 0 | 0 |
Fair value of derivative liability in connection with issuance of notes payable | |||||||
0 | 0 | 6,328 | 6,573 | 7,886 | 0 | 0 | 0 |
Reclassification of warrant from liability to equity | |||||||
- | 0 | 0 | 9,118 | - | 0 | 0 | 0 |