v2.4.0.6
Document And Entity Information
6 Months Ended
Jun. 30, 2013
Jul. 29, 2013
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2013  
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q2  
Trading Symbol acur  
Entity Common Stock, Shares Outstanding   46,495,646
Entity Registrant Name ACURA PHARMACEUTICALS, INC  
Entity Central Index Key 0000786947  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer