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INCOME TAXES (Details 1)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Income Taxes Details 1    
Income taxes benefit (expense) at statutory rate 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
State income tax, net of federal benefit 2.76%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes (4.40%)us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
Permanent Differences    
Gain/loss or revaluation of derivative warrant liability 2.07%ecte_GainlossOrRevaluationOfDerivativeWarrantLiability 7.80%ecte_GainlossOrRevaluationOfDerivativeWarrantLiability
Stock-based compensation expense (0.88%)ecte_StockbasedCompensationExpenseRate (1.30%)ecte_StockbasedCompensationExpenseRate
Other 0.01%ecte_OtherDifferenceRate (1.70%)ecte_OtherDifferenceRate
R&D credits 1.21%ecte_RdCreditsRate (4.70%)ecte_RdCreditsRate
Change in valuation allowance (31.13%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance (29.70%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
Income taxes rate differences (3.00%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential