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Document and Entity Information
 6 Months Ended
Dec. 31, 2011
Feb. 04, 2012
Document and Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Dec. 31, 2011  
Entity Registrant Name PLURISTEM THERAPEUTICS INC  
Entity Central Index Key 0001158780  
Current Fiscal Year End Date --06-30  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2012  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   44,345,101