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Redeemable Convertible Preferred Stock - Additional Information (Detail) (USD $)
0 Months Ended 12 Months Ended
May 02, 2012
Dec. 31, 2014
Dec. 31, 2013
Apr. 13, 2012
Apr. 30, 2012
Class Of Stock [Line Items]          
Redeemable convertible preferred stock, shares issued   1,000,000us-gaap_TemporaryEquitySharesIssued 1,000,000us-gaap_TemporaryEquitySharesIssued    
Common stock, shares issued   8,185,323us-gaap_CommonStockSharesIssued 8,185,323us-gaap_CommonStockSharesIssued 1,000,000us-gaap_CommonStockSharesIssued  
Number of warrants   325,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights      
Redeemable convertible preferred stock, shares authorized   1,000,000us-gaap_TemporaryEquitySharesAuthorized 1,000,000us-gaap_TemporaryEquitySharesAuthorized    
Preferred stock and warrants value issued $ 5,000,000us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants $ 840,000us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants      
Accretion amount   45,000us-gaap_PreferredStockAccretionOfRedemptionDiscount 42,000us-gaap_PreferredStockAccretionOfRedemptionDiscount    
Warrants Exercise Price Tranche One          
Class Of Stock [Line Items]          
Redeemable convertible preferred stock, stock price per share       6.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= aeti_WarrantsExercisePriceTrancheOneMember
 
Number of warrants       125,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= aeti_WarrantsExercisePriceTrancheOneMember
 
Warrants Exercise Price Tranche Two          
Class Of Stock [Line Items]          
Redeemable convertible preferred stock, stock price per share       7.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= aeti_WarrantsExercisePriceTrancheTwoMember
 
Number of warrants       200,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= aeti_WarrantsExercisePriceTrancheTwoMember
 
Securities Purchase Agreement          
Class Of Stock [Line Items]          
Number of warrants       325,000us-gaap_ClassOfWarrantOrRightUnissued
/ us-gaap_SubsidiarySaleOfStockAxis
= aeti_SecuritiesPurchaseAgreementMember
 
Series A Convertible Preferred Stock          
Class Of Stock [Line Items]          
Redeemable convertible preferred stock, stock price per share       5.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
 
Redeemable convertible preferred stock, shares authorized         1,000,000us-gaap_TemporaryEquitySharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
Cumulative dividends at a rate   6.00%us-gaap_PreferredStockDividendRatePercentage
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
     
Redeemable convertible preferred stock, liquidation preference per share $ 5.00us-gaap_TemporaryEquityLiquidationPreferencePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
       
Number of redemption price, accrued and unpaid dividends installment payments   36aeti_NumberOfRedemptionPriceAccruedAndUnpaidDividendsInstallmentPayments
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
     
Annual interest rate on redemption value payable   6.00%aeti_InterestOnRedemptionValuePayable
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
     
Preferred stock and warrants value issued $ 4,160,000us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
       
Series A Convertible Preferred Stock | Securities Purchase Agreement          
Class Of Stock [Line Items]          
Redeemable convertible preferred stock, shares issued       1,000,000us-gaap_TemporaryEquitySharesIssued
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
/ us-gaap_SubsidiarySaleOfStockAxis
= aeti_SecuritiesPurchaseAgreementMember
 
Redeemable convertible preferred stock, stock price per share       5.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
/ us-gaap_SubsidiarySaleOfStockAxis
= aeti_SecuritiesPurchaseAgreementMember