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Benefit Plans and Stock-Based Compensation - Additional Information (Detail)
 12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Mar. 30, 2013
USD ($)
Mar. 31, 2012
USD ($)
Mar. 26, 2011
USD ($)
Mar. 27, 2010
Mar. 30, 2013
Stock appreciation rights [Member]
USD ($)
Mar. 31, 2012
Stock appreciation rights [Member]
USD ($)
Mar. 26, 2011
Stock appreciation rights [Member]
USD ($)
Mar. 26, 2011
Amended Stock Option Plan [Member]
USD ($)
Mar. 30, 2013
Options Outstanding [Member]
USD ($)
Mar. 31, 2012
Options Outstanding [Member]
USD ($)
Mar. 30, 2013
Mayors Stock Option Plan [Member]
Mar. 30, 2013
Mayors Stock Option Plan [Member]
Mar. 31, 2012
Mayors Stock Option Plan [Member]
Mar. 26, 2011
Mayors Stock Option Plan [Member]
Mar. 27, 2010
Mayors Stock Option Plan [Member]
Mar. 30, 2013
Employee Stock Purchase Plans [Member]
Mar. 31, 2012
Employee Stock Purchase Plans [Member]
Mar. 26, 2011
Employee Stock Purchase Plans [Member]
Mar. 30, 2013
Profit Sharing 401 K Plan [Member]
USD ($)
Mar. 31, 2012
Profit Sharing 401 K Plan [Member]
USD ($)
Mar. 26, 2011
Profit Sharing 401 K Plan [Member]
USD ($)
Mar. 30, 2013
2003 Credit Facility [Member]
USD ($)
Y
Mar. 30, 2013
2003 Credit Facility [Member]
CAD
Mar. 30, 2013
Class A voting share [Member]
USD ($)
Mar. 31, 2012
Class A voting share [Member]
USD ($)
Mar. 26, 2011
Class A voting share [Member]
USD ($)
Mar. 30, 2013
Class A voting share [Member]
CAD
Mar. 30, 2013
Class A voting share [Member]
Employee Stock Purchase Plans [Member]
Mar. 30, 2013
Class A voting share [Member]
Chief Executive Officer [Member]
USD ($)
Mar. 30, 2013
Birks ESOP [Member]
Class A voting share [Member]
Mar. 30, 2013
Amended Birks Employee Stock Option Plan [Member]
Class A voting share [Member]
USD ($)
Mar. 31, 2012
Amended Birks Employee Stock Option Plan [Member]
Class A voting share [Member]
Mar. 26, 2011
Amended Birks Employee Stock Option Plan [Member]
Class A voting share [Member]
Mar. 30, 2013
Long Term Incentive Plan [Member]
Class A voting share [Member]
USD ($)
Mar. 31, 2012
Long Term Incentive Plan [Member]
Class A voting share [Member]
USD ($)
Mar. 30, 2013
Long Term Incentive Plan [Member]
Class A voting share [Member]
Stock appreciation rights [Member]
Mar. 30, 2013
Combined Equity Award Plans [Member]
Class A voting share [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                                                          
Authorized issuance of shares                                                       100,000           900,000     1,304,025
Stock appreciation rights granted                                                                       72,320  
Long term incentive plan stock appreciation rights, weighted average exercise price                                                                   $ 2.53      
Options outstanding 624,618 496,118 323,086 307,761             9,081 9,081 217,746 224,240 269,265                           242,944         360,000      
Stock options issued                                                                   130,000 175,000    
Vesting period                                                                   3 years      
Exercise price                                                             $ 1.05     $ 0.89 $ 1.07    
Expiration period                                                                   10 years      
Weighted Average Grant Date Fair Value                                                                   $ 0.79 $ 1.02    
Dividend yield                                                                   0.00%      
Expected volatility                                                                   95.10% 97.80%    
Risk free interest rate                                                                   1.59% 2.19%    
Weighted average expected term                                                                   10 years      
Intrinsic value of outstanding options                                               $ 0                          
Unrecognized compensation, non-vested portion of stock option                                               127,000                          
Total compensation Cost for recognized earning                                               118,000 79,000 19,000                      
Employee stock option description                                                           Birks ESOP              
Options granted 15,000                                                           6,674 8,174 10,142        
Purchase price Class A voting shares                                               $ 7.61     7.73                    
Exercise price per share                                                         $ 1.00                
Compensation expense         0 0 0 5,000 0 0                           0 0 0                      
Weighted average estimated life         2 years 2 months 12 days           1 year 9 months 18 days 1 year 9 months 18 days                                                  
Outstanding stock         21,737                                                                
Aggregate intrinsic value         0                                                                
Share-based payment arrangements 0 0 0                                                                    
Outstanding warrants 382,693                                                                        
Weighted average exercise price $ 3.42                                                                        
Warrant expiry date Aug. 20, 2022                                                                        
Number of Class A voting shares which could be purchased by Investissement Quebec                                           99,428                              
Exercise price of options                                           $ 4.62 4.52                            
Selling and general administrative expense 110,806,000 118,075,000 107,444,000                                     17,000                              
Year the options expired                                           2,011                              
Common stock purchase percent                                                       85.00%                  
Outstanding shares                                                       99,995                  
Additional shares issued                               0 0 0                                      
Additional shares to be issued under this plan                               No additional shares will be issued under this plan                                          
Percentage of employee contribution                                     25.00%                                    
Percentage of employee compensation                                     4.00%                                    
Company matching contributions after exercise of its right to cancel future matching contributions                                     0 0 0                                
Payment portion of LTCIP value at the end of first three year 0.33                                                                        
Payment portion of LTCIP value thereafter 0.33                                                                        
Maximum percentage of CO's total earnings before tax for three years 10.00%                                                                        
Target incentive compensation level for the first three year cycle $ 2,067,000                                                                        
Percentage of total payout capped 200.00%