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WARRANTS (Details 1) (USD $)
12 Months Ended
Dec. 31, 2014
Class of Warrant or Right [Line Items]  
Warrants outstanding 1,147,066
Number exercisable 1847066
Derivative [Member]  
Class of Warrant or Right [Line Items]  
Date of Expiration 8/31/17 to 11/6/17
Warrants outstanding 700,000
Weighted-Average remaining contractual life 2 years 8 months 25 days
Weighted average exercise price 20.71us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingPeriodIncreaseDecreaseWeightedAverageExercisePrice
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_DerivativeMember
Number exercisable 700000
Derivative [Member] | Derivative [Member]  
Class of Warrant or Right [Line Items]  
Exercise Price 20.00us-gaap_TemporaryEquityParOrStatedValuePerShare
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_DerivativeMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Derivative [Member] | Maximum [Member]  
Class of Warrant or Right [Line Items]  
Exercise Price 22.70us-gaap_TemporaryEquityParOrStatedValuePerShare
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_DerivativeMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Equity [Member]  
Class of Warrant or Right [Line Items]  
Date of Expiration 12/10/18 to 12/18/19
Warrants outstanding 1,109,428
Weighted-Average remaining contractual life 4 years 9 months
Weighted average exercise price 2.94us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingPeriodIncreaseDecreaseWeightedAverageExercisePrice
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_EquityMember
Number exercisable 1109428
Equity [Member] | Derivative [Member]  
Class of Warrant or Right [Line Items]  
Exercise Price 2.75us-gaap_TemporaryEquityParOrStatedValuePerShare
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_EquityMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Equity [Member] | Maximum [Member]  
Class of Warrant or Right [Line Items]  
Exercise Price 3.00us-gaap_TemporaryEquityParOrStatedValuePerShare
/ us-gaap_ClassOfWarrantOrRightAxis
= us-gaap_EquityMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Equity 2 [Member]  
Class of Warrant or Right [Line Items]  
Date of Expiration 2/9/15 to 3/18/15
Warrants outstanding 37,638
Weighted-Average remaining contractual life 1 month 22 days
Weighted average exercise price 22.50us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingPeriodIncreaseDecreaseWeightedAverageExercisePrice
/ us-gaap_ClassOfWarrantOrRightAxis
= ecte_Equity2Member
Number exercisable 37638
Equity 2 [Member] | Derivative [Member]  
Class of Warrant or Right [Line Items]  
Exercise Price 22.50us-gaap_TemporaryEquityParOrStatedValuePerShare
/ us-gaap_ClassOfWarrantOrRightAxis
= ecte_Equity2Member
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Equity 2 [Member] | Maximum [Member]  
Class of Warrant or Right [Line Items]  
Exercise Price 22.50us-gaap_TemporaryEquityParOrStatedValuePerShare
/ us-gaap_ClassOfWarrantOrRightAxis
= ecte_Equity2Member
/ us-gaap_RangeAxis
= us-gaap_MaximumMember