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v3.19.3

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Cash flows from operating activities: |  |
Net loss | $ (33,525) | $ (26,722)
Reconciliation of net loss to net cash used in operating activities |  |
Depreciation | 2,987 | 2,354
Amortization of intellectual property | 137 | 143
Accretion of asset retirement obligation | 34 | 32
Fair value of warrant modification, net | 0 | 402
Fair value of common stock issued for consulting services | 4,075 | 0
Stock-based compensation | 2,899 | 853
Warrant expense | 4,046 | 0
Amortization of debt discount | 0 | 1,152
Amortization of deferred financing costs | 47 | 64
Non-cash convertible note interest expense | 2,556 | 509
Non-cash interest expense | 95 | 0
Loss on disposal of Ebonex asset | 90 | 0
Loss on disposal of equipment | 79 | 10
Inventory adjustment | 0 | 179
Changes in operating assets and liabilities |  |
Accounts receivable | (988) | 21
Inventory | (1,058) | (29)
Prepaid expenses and other current assets | (507) | 448
Accounts payable | 2,763 | 483
Accrued expenses | (1,914) | 827
Deferred rent | (35) | (116)
Other assets and liabilities | (372) | 0
Net cash used in operating activities | (18,591) | (19,390)
Cash flows from investing activities: |  |
Purchases of property and equipment | (8,146) | (3,057)
Equipment deposits and other assets | (1,122) | (10)
Net cash used in investing activities | (9,268) | (3,067)
Cash flows from financing activities: |  |
Proceeds from issuance of common stock, net of transaction costs | 29,380 | 28,754
Payments on notes payable | (221) | (206)
Payments on finance leases | 0 | (112)
Payments on convertible note | (6,651) | 0
Net cash provided by financing activities | 22,508 | 28,436
Net decrease in cash and cash equivalents | (5,351) | 5,979
Cash and cash equivalents at beginning of period | 20,892 | 22,793
Cash and cash equivalents at end of period | 15,541 | 28,772
Supplemental disclosure of cash flows information |  |
Cash paid for income taxes | 2 | 2
Cash paid for interest | 454 | 465
Supplemental disclosure of non-cash transactions |  |
Change in property and equipment resulting from change in accounts payable | (437) | (45)
Change in property and equipment resulting from change in accrued expenses | (259) | (8)
Change in equity resulting from change in accrued expenses | $ 1,300 | $ 600

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