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v3.3.1.900

Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Cash flows from operating activities |  |
Net (loss) income | $ (516,000) | $ 23,109,000
Adjustments required to reconcile net income to net cash used in operating activities: |  |
Change in fair value of warrant liability | (610,000) | (9,455,000)
Change in fair value of Series B preferred stock derivative liability | (9,330,000) | (27,764,000)
Gain on re-valuation of liquidated damages liability | (120,000) |
Warrants issued to placement agents | 213,000 |
Deferred taxes | (73,000) |
Amortization of patents | 31,000 | 31,000
Depreciation | 299,000 | 127,000
Stock-based compensation | 479,000 | 775,000
Stock-based compensation - severance | 4,000 | 1,161,000
Changes in operating assets and liabilities net of acquisitions: |  |
Accounts receivable | (25,000) | (92,000)
Accounts payable, accrued expenses, deferred revenue and other | 296,000 | (977,000)
Accrued severance | (247,000) | 555,000
Prepaid expenses and other current assets | (182,000) | (42,000)
Net cash used in operating activities | (9,781,000) | (12,572,000)
Investing activities: |  |
Purchases of property and equipment | (210,000) | (1,202,000)
Net cash used in investing activities | (210,000) | (1,202,000)
Financing activities: |  |
Proceeds from warrant exercises | 396,000 |
Proceeds from issuance of common stock, net | 12,384,000 |
Net cash provided by financing activities | 12,780,000 |
Net increase (decrease) in cash and cash equivalents | 2,789,000 | (13,774,000)
Cash and cash equivalents, beginning of period | 6,581,000 | 20,355,000
Cash and cash equivalents, end of period | 9,370,000 | 6,581,000
Supplemental schedule of non-cash financing activities: |  |
Accretion of Series B redeemable convertible preferred stock | $ 10,278,000 | 1,285,000
Fair value of warrant liability upon issuance | 4,210,000 |
Fair value of warrant liability converted upon exercise | $ 1,073,000 | $ 1,595,000

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