Annual report pursuant to section 13 and 15(d)

Document and Entity Information

Document and Entity Information (USD $)
12 Months Ended
Dec. 31, 2011
Mar. 31, 2012
Document and Entity Information [Abstract]    
Entity Registrant Name ARETE INDUSTRIES INC  
Entity Central Index Key 0000820901  
Document Type 10-K  
Document Period End Date Dec. 31, 2011
Amendment Flag false  
Document Fiscal Year Focus 2011  
Document Fiscal Period Focus FY  
Current Fiscal Year End Date --12-31  
Entity Well-known Seasoned Issuer Yes  
Entity Voluntary Filers No  
Entity Current Reporting Status No  
Entity Filer Category Smaller Reporting Company  
Entity Public Float   $ 8,336,227
Entity Common Stock, Shares Outstanding   7,764,476