Income Taxes, Components of Loss before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Components of loss before income taxes [Abstract]
United States	$ (16,463)	$ (25,754)	$ (3,412)
Foreign	530	(2,280)	556
Total	(15,933)	(28,034)	(2,856)
Income from discontinued operations, before income taxes	0	0	0
Loss from continuing operations, before income taxes	$ (15,933)	$ (28,034)	$ (2,856)

Amount of income from operations before taxes.

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Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

+ References

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The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

+ References

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