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Consolidated Statement of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Statement of Cash Flows [Abstract] |  |  |
Net (loss)/income | $ 2,811 | $ (19,853) | $ (46,041)
Provision/(reversal) for bad debts | (126) | 2,014 | 40
Impairment for inventory obsolescence | 657 | 96 | 16
Impairment for long-term investment |  | 80 |
Depreciation of property and equipment | 985 | 839 | 2,022
Amortization of intangible assets | 136 | 142 | 143
Gains on disposals of property and equipment | (203) | (215) | (94)
Interest expenses | 133 | 441 | 188
Amortization of beneficial conversion feature |  | 149 |
Share-based compensation | 3,314 | 3,098 | 8,757
Fair value losses on other investments | 2,748 | 12,958 | 12,363
Share of profit in equity method investments | (357) | (72) | (287)
Foreign currency exchange losses, net | 514 | 2,519 | 1,106
Changes in operating assets and liabilities |  |  |
Accounts receivable | (390) | 7,715 | (8,239)
Prepayments and other assets | (1,713) | 1,825 | 985
Inventories | 784 | 2,413 | (302)
Accrued expenses, accounts payable and other liabilities | (691) | (9,647) | 5,917
Amounts due to related parties | (231) | 28 | (50)
Amounts due from related parties | (2,247) | 455 | 1,111
Contract liabilities | 373 | (523) | 686
Other non-current liabilities | (59) | (58) | (59)
Operating lease right-of-use assets | (2,115) |  |
Operating lease liabilities | 2,184 |  |
Net cash (used in)/generated from operating activities | 6,507 | 4,404 | (21,738)
Cash flows from investing activities |  |  |
Purchase of property and equipment | (2,065) | (411) | (787)
Purchase of intangible assets |  | (14) | (92)
Proceeds from disposal of property and equipment | 217 | 266 | 193
Cash paid for equity method investment |  |  | (247)
Dividend received from long-term investment | 83 |  |
(Increase)/decrease in short-term deposit | 196 |  | (2)
Purchase of other investments |  | (3) |
Proceeds from redemption of other investment | 1,329 |  |
Net cash used in investing activities | (240) | (162) | (935)
Cash flows from financing activities |  |  |
Proceeds from other borrowings | 2,541 | 212 |
Repayments of other borrowings | (34) | (163) |
Proceeds from issuance of convertible bonds |  | 4,735 |
Redemption of convertible bonds |  | (1,050) |
Proceeds from bank borrowings | 5,369 | 9,496 | 11,419
Repayments of bank borrowings | (5,416) | (9,452) | (11,968)
Proceeds from exercise of share options | 49 |  | 1,284
Payments relating to current Lease Liability |  | (238) |
Net cash generated from financing activities | 2,509 | 3,540 | 735
(Decrease)/increase in cash, cash equivalents and restricted cash | 8,776 | 7,782 | (21,938)
Cash, cash equivalents and restricted cash at beginning of year | 14,921 | 7,868 | 30,226
Effect of exchange rates on cash, cash equivalents and restricted cash | (326) | (729) | (420)
Cash, cash equivalents and restricted cash at end of year | 23,371 | 14,921 | 7,868
Supplemental disclosure of cash flow information |  |  |
Interest paid | (133) | (426) | (188)
Cash paid for amounts include in operating lease liabilities |  | (15) |
Supplemental disclosure of non-cash operating activities |  |  |
Right-of-use assets obtained in exchange for operating lease obligations | $ 2,806 | $ 444 |

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