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v3.19.3

Condensed Consolidated Statements of Cash Flows - USD ($) | 9 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Cash flows from operating activities: |  |
Net loss | $ (6,863,000) | $ (6,959,000)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Common stock issued for services | 11,000 | 176,000
Share based compensation | 560,000 | 170,000
Depreciation and amortization | 185,000 | 267,000
Abandonment and impairment of capitalized patent costs | 733,000 | 35,000
Change in operating assets and liabilities: |  |
Contract assets | (14,000) | 145,000
Prepaid expenses and other assets | (35,000) | (210,000)
Accounts payable and accrued liabilities | (270,000) | 10,000
Accrued compensation and taxes | 236,000 | 43,000
Net cash used in operating activities | (5,457,000) | (6,323,000)
Cash flows from investing activities: |  |
Acquisition of fixed assets | (13,000) | (44,000)
Disbursements for patents and other intangible assets | (326,000) | (313,000)
Maturity of short term treasury bills | 4,924,000 | 0
Net cash provided by (used in) investing activities | 4,585,000 | (357,000)
Cash flows from financing activities: |  |
Proceeds from issuance of common stock, net of offering costs | 0 | 23,511,000
Net cash provided by financing activities | 0 | 23,511,000
Net increase (decrease) in cash and cash equivalents | (872,000) | 16,831,000
Cash and cash equivalents, beginning of year | 8,949,000 | 1,247,000
Cash and cash equivalents, end of year | $ 8,077,000 | $ 18,078,000

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