v3.5.0.2
Document And Entity Information - shares
9 Months Ended
Sep. 30, 2016
Oct. 31, 2016
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2016  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q3  
Entity Registrant Name ACURA PHARMACEUTICALS, INC  
Entity Central Index Key 0000786947  
Current Fiscal Year End Date --12-31  
Entity Filer Category Smaller Reporting Company  
Trading Symbol ACUR  
Entity Common Stock, Shares Outstanding   11,833,801