v2.3.0.11
Document And Entity Information (USD $)
6 Months Ended
Jun. 30, 2011
Aug. 10, 2011
Document and Entity Information [Abstract]    
Entity Registrant Name ALR Technologies Inc.  
Document Type 10-Q  
Current Fiscal Year End Date --12-31  
Entity Common Stock, Shares Outstanding   213,977,909
Entity Public Float   $ 106,997,178
Amendment Flag false  
Entity Central Index Key 0001087022  
Entity Current Reporting Status Yes  
Entity Voluntary Filers No  
Entity Filer Category Smaller Reporting Company  
Entity Well-known Seasoned Issuer No  
Document Period End Date Jun. 30, 2011
Document Fiscal Year Focus 2011  
Document Fiscal Period Focus Q2