v3.19.3

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018 | Dec. 31, 2017
Cash flows from operating activities: |  |  |  |
Net loss | $ (7,138,000) | $ (2,946,000) | $ (5,985,000) | $ (11,561,000)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |  |
Depreciation expense | 4,000 | 4,000 | 8,000 | 10,000
Stock-based compensation expense | 168,000 | 150,000 | 309,000 | 301,000
Changes in fair value of warrant liability | 95,000 | 1,000 | 98,000 | (12,000)
Changes in fair value of derivative liability |  | (60,000) |  |
Accretion of final charge upon maturity of Oxford Term Loan A and B | 148,000 | 94,000 | 224,000 | 106,000
Amortization of issuance cost and discounts for term loans and convertible notes | 16,000 | 130,000 | 40,000 | 54,000
Non-cash interest expense on convertible promissory notes | 2,304,000 | 31,000 | 126,000 |
Non-cash operating lease cost | 140,000 |  |  |
Changes in operating assets and liabilities: |  |  |  |
Prepaid expenses and other current assets | (1,611,000) | (12,000) | 23,000 | 329,000
Other assets | 57,000 |  |  | 1,000
Accounts payable | 1,255,000 | (607,000) | (212,000) | 601,000
Accrued liabilities | 475,000 | (312,000) | (650,000) | (12,000)
Lease liability | (136,000) |  |  |
Net cash used in operating activities | (4,223,000) | (3,527,000) | (6,019,000) | (10,183,000)
Cash flows from investing activities: |  |  |  |
Purchases of property and equipment |  |  | (5,000) | (3,000)
Net cash used in investing activities |  |  | (5,000) | (3,000)
Cash flows from financing activities: |  |  |  |
Payments on term loan | (1,437,000) | (616,000) | (890,000) | (139,000)
Proceeds from exercise of warrants |  |  |  | 80,000
Proceeds from issuance of convertible promissory notes - related party | 3,996,000 | 1,500,000 | 4,500,000 |
Net cash provided by financing activities | 2,559,000 | 884,000 | 3,610,000 | (59,000)
Net decrease in cash, cash equivalents and restricted cash | (1,664,000) | (2,643,000) | (2,414,000) | (10,245,000)
Cash, cash equivalents and restricted cash at beginning of period | 1,942,000 | 4,356,000 | 4,356,000 | 14,601,000
Cash, cash equivalents and restricted cash at end of period | 278,000 | 1,713,000 | 1,942,000 | 4,356,000
Other supplemental disclosure: |  |  |  |
Cash paid for interest | 173,000 | 190,000 | $ 376,000 | $ 355,000
Non-cash investing and financing activities: |  |  |  |
Right-of-use assets obtained in exchange for operating lease obligations(1) | 227,000 |  |  |
Reclassification of warrant liability to paid in capital | 234,000 |  |  |
Conversion of convertible preferred stock into common stock | $ 34,015,000 |  |  |

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