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Income Taxes - Components of Loss before Income Taxes and Dividends on Preferred Stock (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Components of income (loss) before income taxes
United States	$ (2,990)	$ (3,556)
Foreign	1,620	404
Discontinued operations	(896)	(2,031)
Income (loss) before income taxes	$ (2,266)	$ (5,183)

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- Definition

Income Loss Before Income Taxes and Preferred Dividend

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Income loss before income taxes and preferred dividend.

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- Definition

Income (loss) before income taxes and preferred dividend discontinued operations.

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Income Loss Before Income Taxes and Preferred Dividend Domestic

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- Definition

Income Loss Before Income Taxes and Preferred Dividend Foreign

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