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Income Taxes - Income Taxes United States and Foreign (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Current: |  |
United States |  |
Foreign | 18 | 14
Deferred: |  |
United States | (853) | 407
Foreign |  |
Operating loss and credit carryovers: |  |
United States | 187 | (1,056)
Foreign |  |
Income tax expense (benefit) | $ (648) | $ (635)

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