| 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 |
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Net income | 1 | 1 | 1 | -0 | 18 | -1 | 0 | 6 | 11 | 8 | 9 | 14 | 3 |
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Depreciation and amortization | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 4 | 6 | 6 |
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us-gaap_ShareBasedCompensation | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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Deferred | - | - | - | - | - | - | - | -0 | 1 | 1 | -0 | -0 | -2 |
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Non-cash investment loss | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 |
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Non-cash interest income | - | - | - | - | - | - | - | - | - | - | - | 0 | - |
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Equity in loss (gain) of affiliate company | 0 | -0 | 0 | -0 | -0 | -0 | -0 | -0 | -0 | -0 | -0 | 0 | -1 |
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Accounts receivable, net | 0 | 1 | -1 | -1 | 0 | 0 | -0 | 3 | 5 | -5 | 2 | 8 | -6 |
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Other current assets | -0 | 0 | -0 | 0 | 3 | 1 | 1 | -1 | -0 | 0 | 1 | 2 | 1 |
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Other long-term assets | - | - | 0 | - | -0 | 0 | 0 | 0 | -0 | -0 | 0 | 0 | -0 |
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Accounts payable | 0 | -0 | 0 | -0 | -0 | 0 | 0 | -0 | 0 | 0 | 0 | 1 | -1 |
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Accrued payroll | -0 | 0 | 0 | 0 | -0 | 0 | 0 | 1 | 1 | -1 | 0 | -0 | 0 |
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Deferred revenue, current portion | - | - | - | - | - | - | - | - | - | - | 1 | -1 | 1 |
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Accrued expenses | 0 | 0 | -0 | -0 | 0 | 0 | 0 | -0 | 0 | 0 | 0 | 0 | 0 |
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Other current liabilities | 0 | 0 | -0 | 0 | -0 | 0 | 0 | 1 | 1 | 3 | -3 | -1 | 1 |
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Deferred revenue, net of current portion | - | - | - | - | - | - | - | - | - | - | 0 | 0 | -0 |
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Net cash provided by operating activities | 0 | -0 | 2 | -1 | - | - | - | 7 | 11 | 21 | 9 | 10 | 17 |
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Purchases of property and equipment | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 2 | 7 | 5 | 9 | 5 |
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Advances on note and interest receivable | - | - | - | - | - | - | - | - | - | - | 1 | - | 1 |
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Purchase of intangible asset | - | 0 | 0 | - | - | - | - | - | - | - | 0 | - | - |
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Purchase of long-term investment | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
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Purchase of long-term investment | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
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Proceeds from payments on notes receivable | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 |
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Proceeds from payments on notes receivable | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 |
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Purchases of marketable securities | 0 | 0 | 0 | 0 | - | - | - | - | - | - | - | 7 | 3 |
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Purchases of marketable securities | 0 | 0 | 0 | 0 | - | - | - | - | - | - | - | 7 | 3 |
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Maturities of marketable securities | - | - | - | - | - | - | - | - | - | - | - | 2 | 2 |
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Maturities of marketable securities | - | - | - | - | - | - | - | - | - | - | - | 2 | 2 |
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Net cash used in investing activities | -0 | -1 | -0 | -0 | -1 | 4 | -1 | -2 | -3 | -8 | -8 | -13 | -7 |
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Net cash used in investing activities | -0 | -1 | -0 | -0 | -1 | 4 | -1 | -2 | -3 | -8 | -8 | -13 | -7 |
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Sale of capital stock pursuant to exercise of option | - | - | - | - | 0 | 0 | - | 0 | 0 | - | 0 | - | - |
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Repurchases of common stock | - | - | - | - | 1 | - | - | - | - | 2 | 10 | 5 | 4 |
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Repurchases of common stock | - | - | - | - | 1 | - | - | - | - | 2 | 10 | 5 | 4 |
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Net cash used in financing activities | - | - | - | - | - | - | - | 0 | 0 | -2 | -10 | -5 | -4 |
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Net cash used in financing activities | - | - | - | - | - | - | - | 0 | 0 | -2 | -10 | -5 | -4 |
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Effects of exchange rate changes on cash | - | - | - | - | - | - | - | - | - | -0 | -0 | 0 | -0 |
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Effects of exchange rate changes on cash | - | - | - | - | - | - | - | - | - | -0 | -0 | 0 | -0 |
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Net decrease in cash | - | - | - | - | - | - | - | - | - | 12 | -9 | -9 | 7 |
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Net decrease in cash | - | - | - | - | - | - | - | - | - | 12 | -9 | -9 | 7 |
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Cash paid during the period for income taxes | - | - | - | - | - | - | - | - | 1 | 2 | 3 | 7 | 1 |
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Purchases of property and equipment, accrued but not paid | - | - | - | - | - | - | - | - | - | - | 2 | 0 | 0 |
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