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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Operating activities: |  |
Net loss | $ (2,367,000) | $ (939,000)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Unrealized gain on marketable equity securities | (82,000) | (360,000)
Unrealized loss on short-term investments | 102,000 | 57,000
Loss (gain) on sale of marketable equity securities | 248,000 | (50,000)
Loss on derivative instruments | 38,000 | 92,000
Other income - Paycheck Protection Program loan forgiveness | (10,000) | (60,000)
Other income - gain on conversion of SilverStream note | 0 | (44,000)
Mineral property impairment | 17,000 | 6,000
Employee stock option expense | 124,000 | 315,000
Depreciation | 27,000 | 25,000
Amortization of right of use lease asset | 40,000 | 38,000
Changes in operating assets and liabilities: |  |
Prepaid expenses and other current assets | (277,000) | 38,000
Accounts payable and other current liabilities | 17,000 | 128,000
Net cash used in operating activities | (2,157,000) | (1,010,000)
Investing activities: |  |
Sale of short-term investments - net | 609,000 | 974,000
Additions to mineral property | (635,000) |
Sale of marketable equity securities | 147,000 | 123,000
Sale (Purchase) of derivative instruments - net | 8,000 | (121,000)
Additions to other assets | (39,000) | 0
Net cash provided by investing activities | 90,000 | 976,000
Financing activities: |  |
Issuance of common stock - net of acquisition costs | 1,841,000 |
Stock options exercised for cash | 83,000 |
Paycheck Protection Program loan | 0 | 70,000
Repurchase of Solitario common stock for cancellation | 0 | (5,000)
Net cash provided in financing activities | 1,924,000 | 65,000
Net (decrease) increase in cash and cash equivalents | (143,000) | 31,000
Cash and cash equivalents, beginning of year | 605,000 | 574,000
Cash and cash equivalents, end of year | 462,000 | 605,000
Supplemental Cash Flow information: |  |
Accrued mineral property acquisition costs included in accounts payable | 60,000 | 0
Acquisition of right to use asset | 99,000 | 0
Conversion of SilverStream note to Marketable equity securities | 0 | 294,000
Acquisition of Gold Coin property included in accounts payable | $ 0 | $ 17,000

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