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BUSINESS COMBINATIONS (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Business Acquisition [Line Items]  
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets $ 0us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
Momspot LLC [Member]  
Business Acquisition [Line Items]  
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets $ 0us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets
/ us-gaap_BusinessAcquisitionAxis
= atrn_MomspotLlcMember		 [1]
[1] Fair value, which was not material, was based upon the fair value of the cash consideration paid by the Company for the acquisition of Momspot ($0 consideration received) and a discounted cash flow analysis, including the calculation of the present value of the terminal value of cash flows, and supporting analysis that included a comparison of selected financial data of the Company with similar data of other publicly held companies comparable to ours in terms of end markets, operational characteristics, growth prospects and geographical footprint.