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REVENUE RECOGNITION AND RELATED ALLOWANCES (Details Textual) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Accounts Receivable, Net, Current, Total 17,371us-gaap_AccountsReceivableNetCurrent   $ 17,297us-gaap_AccountsReceivableNetCurrent
Customer One [Member] | Net Revenues [Member]      
Concentration Risk, Percentage 28.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_MajorCustomersAxis
= anip_CustomerOneMember		 23.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_MajorCustomersAxis
= anip_CustomerOneMember		  
Customer Two [Member] | Net Revenues [Member]      
Concentration Risk, Percentage 24.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_MajorCustomersAxis
= anip_CustomerTwoMember		 18.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_MajorCustomersAxis
= anip_CustomerTwoMember		  
Customer Three [Member] | Net Revenues [Member]      
Concentration Risk, Percentage 19.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_MajorCustomersAxis
= anip_CustomerThreeMember		 15.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
/ us-gaap_MajorCustomersAxis
= anip_CustomerThreeMember		  
Customer One Two And Three [Member] | Net Accounts Receivable [Member]      
Accounts Receivable, Net, Current, Total 14,200us-gaap_AccountsReceivableNetCurrent
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
/ us-gaap_MajorCustomersAxis
= anip_CustomerOneTwoAndThreeMember