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Benefit Plans and Stock-Based Compensation - Additional Information (Detail) |  | 12 Months Ended |
--- | --- | --- | ---
Nov. 15, 2016 shares | Mar. 25, 2017 USD ($) $ / shares shares | Mar. 26, 2016 USD ($) $ / shares shares | Mar. 28, 2015 USD ($) shares | Mar. 29, 2014 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Options outstanding |  | 874,162 | 666,162 | 441,162 | 664,585
Share-based payment arrangements | $ |  | $ 0 | $ 0 | $ 0 |
Outstanding warrants |  | 382,693 |  |  |
Weighted average exercise price | $ / shares |  | $ 3.42 |  |  |
Warrant expiry date |  | Aug. 20, 2022 |  |  |
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% |  |  |
Payment portion of LTCIP value at the end of first three year |  | 0.33 |  |  |
Payment portion of LTCIP value thereafter |  | 0.33 |  |  |
Share Based Compensation Payout Ratio Under Long Term Cash Incentive Plan |  | 0.33 |  |  |
Percentage of amount payable at the end of three year |  | 50.00% |  |  |
Percentage Of Remaining Amount Payable One Year Thereafter |  | 50.00% |  |  |
Amounts earned under CEO long-term cash incentive Plan | $ |  | $ 0 |  |  |
Class A Voting Share [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Intrinsic value of outstanding options | $ |  | 0 |  |  |
Unrecognized compensation, non-vested portion of stock option | $ |  | 46,000 |  |  |
Total compensation cost for recognized expenses | $ |  | $ 92,000 | $ 109,000 | $ 76,000 |
Class A Voting Share [Member] | Maximum [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares reserved for issuance |  | 1,796,088 |  |  |
Amended Birks Employee Stock Option Plan [Member] | Class A Voting Share [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Exercise price | $ / shares |  | $ 1.05 |  |  |
Options granted |  | 6,162 | 6,162 | 6,162 |
Compensation expense | $ |  | $ 0 | $ 0 | $ 0 |
Stock Compensation Plan [Member] | Class A Voting Share [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Employee stock option description |  | Birks ESOP |  |  |
Employee Stock Purchase Plans [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Additional shares to be issued under this plan |  | No additional shares will be issued under this plan. |  |  |
Additional shares issued |  | 0 | 0 | 0 |
Employee Stock Purchase Plans [Member] | Class A Voting Share [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares reserved for issuance |  | 100,000 |  |  |
Common stock purchase percent |  | 85.00% |  |  |
Outstanding shares |  | 99,995 |  |  |
Long Term Incentive Plan [Member] | Class A Voting Share [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Long term incentive plan stock appreciation rights, weighted average exercise price | $ / shares |  | $ 1.33 |  |  |
Options outstanding |  | 650,000 |  |  |
Stock options issued |  | 0 | 235,000 |  |
Vesting period |  |  | 3 years |  |
Exercise price | $ / shares |  |  | $ 0.78 |  |
Expiration period |  |  | 10 years |  |
Weighted Average Grant Date Fair Value | $ / shares |  |  | $ 0.69 |  |
Dividend yield |  | 0.00% |  |  |
Expected volatility |  |  | 95.30% |  |
Risk free interest rate |  |  | 2.30% |  |
Weighted average expected term |  |  | 10 years |  |
Long Term Incentive Plan [Member] | Stock Appreciation Rights [Member] | Class A Voting Share [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Stock options exercisable |  | 128,000 |  |  |
Omnibus LTIP [Member] | Class A Voting Share [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Options outstanding |  | 218,000 |  |  |
Vesting period |  | 3 years |  |  |
Exercise price | $ / shares |  | $ 1.43 |  |  |
Expiration period |  | 10 years |  |  |
Weighted Average Grant Date Fair Value | $ / shares |  | $ 1.34 |  |  |
Dividend yield |  | 0.00% |  |  |
Expected volatility |  | 114.63% |  |  |
Risk free interest rate |  | 2.20% |  |  |
Weighted average expected term |  | 10 years |  |  |
Intrinsic value of outstanding options | $ |  | $ 0 |  |  |
Unrecognized compensation, non-vested portion of stock option | $ |  | 225,000 |  |  |
Total compensation cost for recognized expenses | $ |  | $ 65,000 |  |  |
Shares reserved for issuance |  | 1,000,000 |  |  |
Omnibus LTIP [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period | 3 years |  |  |  |
Units granted | 121,500 |  |  |  |
Expiration period following vesting date | 1 month |  |  |  |
Omnibus LTIP [Member] | Deferred Stock Units (DSU) [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Units granted | 55,944 |  |  |  |
Omnibus LTIP [Member] | Restricted Stock Units and Deferred Stock Units [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Compensation expense | $ |  | $ 34,000 |  |  |
Mayors Stock Option Plan [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Options outstanding |  | 627 | 627 | 926 | 3,836
Compensation expense | $ |  | $ 0 | $ 0 | $ 0 |
Options outstanding, Weighted average remaining life (years) |  | 4 years |  |  |
Profit Sharing 401 K Plan [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
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 |

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