| 2011年 12月31日 | 2012年 12月31日 | 2013年 12月31日 | 2014年 12月31日 | 2015年 12月31日 | 2016年 12月31日 | 2017年 12月31日 | 2018年 12月31日 | 2019年 12月31日 | 2020年 12月31日 | 2021年 12月31日 | 2022年 12月31日 |
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Cash and cash equivalents | 9 | 11 | 8 | 3 | 4 | 5 | 29 | 32 | 35 | 21 | 50 | 43 |
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Short-term investments | 20 | 17 | 13 | 30 | 25 | 20 | 7 | 3 | 30 | 19 | 20 | - |
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Accounts Receivable, after Allowance for Credit Loss, Current | 3 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 1 | 6 | 3 |
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Inventory, Net | 3 | 3 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 |
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Prepaid expenses and other current assets | 2 | 2 | 2 | 1 | 3 | 2 | 3 | 2 | 1 | 5 | 4 | 2 |
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Total current assets | 37 | 36 | 28 | 39 | 38 | 32 | 45 | 42 | 72 | 63 | 82 | 51 |
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Property and equipment, net | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
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Operating lease right-of-use assets | - | - | - | - | - | - | - | - | 6 | 5 | 3 | 2 |
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Goodwill | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
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Long-term restricted investments | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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Other long-term assets | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
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Total assets | 49 | 46 | 41 | 50 | 47 | 41 | 53 | 50 | 86 | 76 | 92 | 60 |
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Accounts payable | 1 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 3 |
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Accrued liabilities | 5 | 4 | 6 | 5 | 5 | 5 | 6 | 5 | 6 | 6 | 7 | 8 |
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Deferred revenue, current portion | - | - | - | - | - | - | - | - | 23 | - | 0 | - |
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Term loan, current portion, net | - | - | - | - | - | 20 | 7 | - | - | 1 | - | 21 |
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Operating Lease, Liability, Current | - | - | - | - | - | - | - | - | 2 | 2 | 2 | 2 |
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Total current liabilities | 15 | 7 | 7 | 7 | 7 | 29 | 16 | 8 | 37 | 11 | 10 | 34 |
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Deferred revenue, non-current portion | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | - |
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Operating Lease, Liability, Noncurrent | - | - | - | - | - | - | - | - | 5 | 3 | 2 | 0 |
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Term loan, non-current portion, net | - | - | - | 20 | 20 | - | 13 | 21 | 20 | 20 | 21 | - |
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Other long-term liabilities | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 |
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Common Stock, Value, Issued | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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Additional paid-in capital | 359 | 376 | 392 | 401 | 420 | 448 | 465 | 489 | 512 | 530 | 584 | 586 |
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Accumulated other comprehensive loss | 0 | 0 | 0 | 0 | -0 | -0 | -0 | - | -0 | -0 | -0 | -0 |
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Accumulated deficit | -356 | -339 | -361 | -383 | -406 | -440 | -444 | -469 | -489 | -490 | -526 | -561 |
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Stockholders’ equity | 3 | 36 | 31 | 19 | 15 | 8 | 21 | 20 | 23 | 40 | 58 | 25 |
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Total liabilities and stockholders’ equity | 49 | 46 | 41 | 50 | 47 | 41 | 53 | 50 | 86 | 76 | 92 | 60 |
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