XML 26 R1.htm IDEA: XBRL DOCUMENT v2.4.0.6
Document and Entity Information
 12 Months Ended
Mar. 31, 2012
Entity Information [Line Items]  
Entity Registrant Name BIRKS & MAYORS INC.
Entity Central Index Key 0001179821
Document Type 20-F
Document Period End Date Mar. 31, 2012
Amendment Flag false
Document Fiscal Year Focus 2012
Document Fiscal Period Focus FY
Current Fiscal Year End Date --03-31
Entity Well-known Seasoned Issuer No
Entity Current Reporting Status Yes
Entity Filer Category Non-accelerated Filer
Class A Common Stock
  
Entity Information [Line Items]  
Entity Common Stock, Shares Outstanding 3,673,615
Class B Common Stock
  
Entity Information [Line Items]  
Entity Common Stock, Shares Outstanding 7,717,970
Series A Preferred Stock
  
Entity Information [Line Items]  
Entity Common Stock, Shares Outstanding 0