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v3.20.2

Condensed Consolidated Statements of Cash Flows - USD ($) | 6 Months Ended
--- | ---
Jun. 30, 2020 | Jun. 30, 2019
Cash flows from operating activities: |  |
Net loss | $ (3,354,000) | $ (4,755,000)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Common stock issued for services | 5,000 | 7,000
Share based compensation | 238,000 | 443,000
Depreciation and amortization | 108,000 | 130,000
Abandonment and impairment of capitalized patent costs | 0 | 396,000
Change in operating assets and liabilities: |  |
Contract assets | (28,000) | (3,000)
Prepaid expenses and other assets | (137,000) | (129,000)
Accounts payable and accrued liabilities | (144,000) | (136,000)
Accrued compensation and taxes | 277,000 | 80,000
Contract liabilities | (2,000) | 0
Net cash used in operating activities | (3,037,000) | (3,967,000)
Cash flows from investing activities: |  |
Acquisition of fixed assets | 0 | (17,000)
Disbursements for patents and other intangible assets | (116,000) | (243,000)
Maturity of short term treasury bills | 0 | 4,935,000
Net cash provided by (used in) investing activities | (116,000) | 4,675,000
Cash flows from financing activities: |  |
Proceeds from exercise of stock options | 22,000 | 0
Proceeds from Payroll Protection Program loan | 251,000 | 0
Net cash provided by financing activities | 273,000 | 0
Net increase (decrease) cash and cash equivalents | (2,880,000) | 708,000
Cash and cash equivalents, beginning of period | 8,552,000 | 8,949,000
Cash and cash equivalents, end of period | $ 5,672,000 | $ 9,657,000

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