| Dec 31,
2011 | Dec 31,
2012 | Dec 31,
2013 | Dec 31,
2014 | Dec 31,
2015 | Dec 31,
2016 | Dec 31,
2017 | Dec 31,
2018 | Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 | Dec 31,
2024 |
|---|
| Net loss | 41 | -75 | 64 | 60 | -222 | -185 | -111 | 64 | -107 | -22 | 9 | -76 | -10 | -2 |
|---|
| Share-based compensation expense | 6 | 11 | 16 | 22 | 28 | 24 | 28 | 32 | 12 | 15 | 8 | 4 | 3 | 2 |
|---|
| Impairment on and loss (income) in equity method investments | - | - | - | - | - | - | - | - | - | - | -59 | -11 | - | 0 |
|---|
| Amortization of the right-of-use assets | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 0 | 1 |
|---|
| Depreciation and amortization | 9 | 16 | 19 | 18 | 9 | 3 | 2 | 1 | 1 | 1 | 0 | 1 | 0 | 0 |
|---|
| Impairment on goodwill | - | - | - | 47 | - | - | - | 29 | 83 | - | - | - | 0 | - |
|---|
| Impairment on intangible asset | 2 | - | 0 | 15 | - | - | - | 1 | - | - | - | 1 | 2 | 0 |
|---|
| Fair value change on long-term investment | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 |
|---|
| Provision for credit losses | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
|---|
| Reversal of tax payable | - | - | - | - | - | - | - | - | - | - | - | - | -9 | -3 |
|---|
| Reversal of aged other payables | - | - | - | - | - | - | - | - | - | - | - | - | - | -2 |
|---|
| Impairment On Long Term Investments | - | - | - | - | - | - | - | - | - | - | 2 | 44 | - | 1 |
|---|
| Accounts receivable | -0 | - | - | - | - | - | - | - | -2 | 0 | 1 | 0 | 1 | 1 |
|---|
| Prepaid expenses and other current assets | 29 | -4 | 20 | 10 | 23 | -8 | 21 | -52 | 10 | -0 | 4 | -3 | 1 | 0 |
|---|
| Inventory | - | - | - | - | - | - | 77 | -29 | -19 | -0 | -0 | -0 | -0 | - |
|---|
| Other non-current assets | 1 | 5 | 0 | -3 | -19 | -0 | -0 | -0 | -0 | -1 | 0 | -0 | - | 0 |
|---|
| Accounts payable | 12 | 16 | 2 | 1 | 1 | 1 | 13 | -12 | -2 | -0 | 1 | -0 | 0 | 0 |
|---|
| Amounts due from/to related parties | -1 | -0 | -13 | -61 | -1 | -1 | -8 | 65 | 6 | 8 | - | 0 | 0 | - |
|---|
| Increase (Decrease) in Accrued Liabilities | 13 | 12 | 4 | -7 | 1 | 2 | 9 | -5 | -2 | -3 | 2 | -0 | -0 | 2 |
|---|
| Deferred revenue | - | - | - | - | - | - | - | - | - | - | 2 | 2 | -0 | 0 |
|---|
| Operating lease liabilities | - | - | - | - | - | - | - | - | - | - | -1 | -1 | -1 | -1 |
|---|
| Income tax payable | 1 | -0 | 1 | 2 | -3 | 2 | 4 | 10 | -1 | -1 | -0 | -3 | 1 | 1 |
|---|
| Net cash (used in) provided by operating activities | -3 | -11 | -73 | 56 | -50 | -11 | -115 | -60 | -34 | - | -18 | -4 | -3 | 1 |
|---|
| Payment for acquisition of a subsidiary, net of cash acquired | 74 | - | - | - | - | - | 23 | 9 | - | - | - | 2 | - | 3 |
|---|
| Purchases of intangible assets | 0 | 1 | 1 | 2 | 0 | - | - | - | - | - | - | 2 | 0 | 0 |
|---|
| Redemption of short-term investments | - | - | - | - | - | - | - | - | - | -1 | - | 24 | - | - |
|---|
| Dividend received from equity investment | - | - | - | - | - | - | - | - | - | - | - | - | 0 | - |
|---|
| Proceeds from disposal of equipment and property | 0 | - | 0 | 0 | 1 | 0 | 0 | 60 | 0 | 0 | 0 | - | 0 | - |
|---|
| Purchases of property and refurbishment construction | 19 | 40 | 29 | 8 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 6 | 1 | 0 |
|---|
| Purchase of short-term investments | 311 | 141 | 89 | - | - | 28 | 6 | - | 1 | - | - | - | - | 5 |
|---|
| Purchase of long-term investments | - | - | - | - | 133 | 6 | 3 | 1 | - | - | - | - | - | 0 |
|---|
| Net cash provided by (used in) investing activities | -801 | -13 | 20 | 109 | -249 | -193 | 224 | 171 | 18 | - | 58 | -33 | 23 | -9 |
|---|
| Proceeds from Stock Options Exercised | 14 | 2 | 3 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
|---|
| Ordinary share buyback | - | - | - | - | - | - | - | - | - | - | - | - | 12 | 0 |
|---|
| Proceeds From Stipulation Settlement | - | - | - | - | - | - | - | - | - | - | - | - | 3 | - |
|---|
| Proceeds from a related party | - | - | 61 | - | - | 11 | - | - | 2 | - | - | - | - | - |
|---|
| Net cash (used in) provided by financing activities | 951 | -54 | -1 | -135 | 180 | 226 | -67 | -254 | -23 | - | -11 | -1 | -9 | 1 |
|---|
| Net increase (decrease) in cash and cash equivalents and restricted cash | - | - | - | - | - | - | - | -144 | -40 | - | - | - | 11 | -7 |
|---|
| Effect of exchange rate changes | - | - | - | - | - | - | - | - | - | - | - | 1 | 0 | -0 |
|---|
| Income taxes paid | - | - | - | - | - | - | 0 | 0 | 0 | - | - | - | 0 | 1 |
|---|
| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | - | - | - | - | - | - | - | - | - | - | 1 | 0 | 1 | 1 |
|---|
| Change of shares withheld for payroll taxes on restricted shares into treasury stock | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
|---|