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v3.22.1

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Cash Flows from operating activities: |  |
Net loss | $ (7,892) | $ (6,886)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Common stock issued for services | 33 | 17
Share based compensation | 680 | 800
Depreciation and amortization | 260 | 210
Abandonment and impairment | 484 |
Gain on forgiveness of Payroll Protection Program Loan and interest | (251) |
Change in operating assets and liabilities: |  |
Contract assets | 53 | (53)
Accounts receivable | (33) |
Prepaid expenses and other assets | 121 | (75)
Accounts payable and accrued liabilities | (205) | (382)
Accrued compensation and related taxes | 53 | 361
Contract liabilities | (10) | 44
Net cash used in operating activities | (6,707) | (5,964)
Cash Flows from investing activities: |  |
Acquisition of fixed assets | (73) | (17)
Disbursements for patents and other intangible assets | (140) | (177)
Net cash used in investing activities | (213) | (194)
Cash flows from financing activities: |  |
Proceeds from issuance of common stock, net of offering costs | 5,309 | 6,053
Proceeds from exercise of stock options and warrants | 385 | 126
Proceeds from Payroll Protection Program loan |  | 251
Net cash provided by financing activities | 5,694 | 6,430
Effect of exchange rate changes on cash and cash equivalents | 9 |
Net increase in cash and cash equivalents | (1,217) | 272
Cash and cash equivalents, beginning of year | 8,824 | 8,552
Cash and cash equivalents, end of year | $ 7,607 | $ 8,824

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