v2.3.0.15
Document And Entity Information (USD $)
9 Months Ended
Sep. 30, 2011
Document and Entity Information [Abstract] 
Entity Registrant NameALR Technologies Inc.
Document Type10-Q
Current Fiscal Year End Date--12-31
Entity Common Stock, Shares Outstanding213,977,909
Entity Public Float$ 106,997,178
Amendment Flagfalse
Entity Central Index Key0001087022
Entity Current Reporting StatusYes
Entity Voluntary FilersNo
Entity Filer CategorySmaller Reporting Company
Entity Well-known Seasoned IssuerNo
Document Period End DateSep. 30, 2011
Document Fiscal Year Focus2011
Document Fiscal Period FocusQ3