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Income Taxes - Components of Income (Loss) before Income Taxes and Dividends on Preferred Stock (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Components of income (loss) before income taxes |  |
United States | $ (7,255)aeti_IncomeLossBeforeIncomeTaxesAndPreferredDividendDomestic | $ 2,240 aeti_IncomeLossBeforeIncomeTaxesAndPreferredDividendDomestic
Foreign | 2,194 aeti_IncomeLossBeforeIncomeTaxesAndPreferredDividendForeign | 3,024 aeti_IncomeLossBeforeIncomeTaxesAndPreferredDividendForeign
Income (loss) before income taxes | $ (5,061)aeti_IncomeLossBeforeIncomeTaxesAndPreferredDividend | $ 5,264 aeti_IncomeLossBeforeIncomeTaxesAndPreferredDividend

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- Definition Income Loss Before Income Taxes and Preferred Dividend Domestic + References No definition available. + Details
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- Definition Income Loss Before Income Taxes and Preferred Dividend Foreign + References No definition available. + Details
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