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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
NET LOSS | $ (3,399) | $ (2,752) | $ (3,425)
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |  |
Depreciation | 43 | 24 | 11
Amortization | 12 | 9 | 9
Bad debt expense | 7 | 2 | 7
Gain on disposal of investment in securities | (76) |  | (125)
Changes in the fair value of investment in equity securities recognized at fair value | 2,110 | (409) |
Unrealized foreign exchange (gain) loss | (85) | 1,022 |
Other |  | 3 |
Net changes in: |  |  |
Accounts receivable | (35) | 64 | 3
Prepaid expenses | 7 | 341 | (313)
Prepaid licensing and royalty fees | 152 | (142) | 96
Prepaid pension assets | 9 | (59) | (16)
Other assets | 272 | (141) | (151)
Accounts payable | (9) | (66) | 47
Accrued expenses | 31 | (284) | (80)
Other liabilities | (232) | (121) | (198)
Net cash used in operating activities | (1,193) | (2,509) | (4,135)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Purchase of investment in securities | (105) |  |
Purchases of property, plant and equipment | (52) | (52) | (76)
Increase in intangible assets | (6) | (18) | (17)
Proceeds from disposal of investment in securities | 1,000 |  | 80
Increase in refundable deposits |  |  | (4)
Net cash provided by (used in) investing activities | 837 | (70) | (17)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Net foreign currency exchange differences on cash, cash equivalents and restricted cash | 32 | (75) | (89)
NET DECREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH | (324) | (2,654) | (4,241)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF YEAR | 39,107 | 41,761 | 46,002
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF YEAR | $ 38,783 | $ 39,107 | 41,761
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: |  |  |
Income tax refunded during the year |  |  | $ (2)

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