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Benefit plans and stock-based compensation (Tables) | 12 Months Ended
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Mar. 30, 2013
Birks Stock Option Plan [Member] |
Summary of Activity of Stock Option Plans and Arrangements | The following is a summary of the activity of Birks’ stock option plans and arrangements. The weighted average exercise price for Canadian priced options in the summary below have been converted to U.S. dollars using the exchange rate for Canadian and U.S. dollars as of March 30, 2013:
|  | Options |  |  | Weighted average exercise price |
Outstanding March 27, 2010 |  |  | 307,761 |  |  | $ | 2.37 |
Granted |  |  | 64,470 |  |  |  | 1.22 |
Cancelled |  |  | (47,353 | ) |  |  | 7.35 |
Forfeited |  |  | (1,664 | ) |  |  | 5.50 |
Exercised |  |  | (128 | ) |  |  | 1.05 |
Outstanding March 26, 2011 |  |  | 323,086 |  |  |  | 1.39 |
Granted |  |  | 175,000 |  |  |  | 1.07 |
Exercised |  |  | (1,080 | ) |  |  | 1.05 |
Cancelled |  |  | (888 | ) |  |  | 7.07 |
Outstanding March 31, 2012 |  |  | 496,118 |  |  |  | 1.26 |
Granted |  |  | 130,000 |  |  |  | 0.89 |
Cancelled |  |  | (1,500 | ) |  |  | 3.28 |
Outstanding March 30, 2013 |  |  | 624,618 |  |  | $ | 1.18 |
Summary of Status of Stock Options | A summary of the status of Birks’ stock options at March 30, 2013 is presented below:
|  | Options outstanding |  |  | Options exercisable |
Exercise price |  | Number outstanding |  |  | Weighted average remaining life (years) |  |  | Weighted average exercise price |  |  | Number exercisable |  |  | Weighted average exercise price |
$0.89-1.00 |  |  | 372,944 |  |  |  | 4.0 |  |  | $ | 0.96 |  |  |  | 242,944 |  |  | $ | 1.00 |
$1.01-1.05 |  |  | 156,674 |  |  |  | 8.7 |  |  |  | 1.04 |  |  |  | 56,674 |  |  |  | 1.04 |
$1.25-1.26 |  |  | 80,000 |  |  |  | 7.7 |  |  |  | 1.25 |  |  |  | 45,000 |  |  |  | 1.25 |
$7.73 |  |  | 15,000 |  |  |  | 1.1 |  |  |  | 7.73 |  |  |  | 15,000 |  |  |  | 7.73 |
|  |  | 624,618 |  |  |  | 5.6 |  |  | $ | 1.18 |  |  |  | 359,618 |  |  | $ | 1.32 |
Mayors Stock Option Plan [Member] |
Summary of Status of Stock Options | A summary of the status of the option plans at March 30, 2013 is presented below:
Exercise price |  |  |  |  | Options outstanding and exercisable |
| Number outstanding |  |  | Weighted average remaining life (years) |  |  | Weighted average exercise price |
$ 1.05 |  |  | 1,260 |  |  |  | 7.0 |  |  | $ | 1.05 |
$ 6.00 – 9.00 |  |  | 7,821 |  |  |  | 1.0 |  |  |  | 8.16 |
|  |  | 9,081 |  |  |  | 1.8 |  |  | $ | 7.18 |
Summary of Stock Option Activity | The following is a summary of the activity of Mayors stock option plans:
|  | Options |  |  | Weighted average exercise price |
Outstanding March 27, 2010 |  |  | 269,265 |  |  | $ | 11.55 |
Forfeited/cancelled |  |  | (47,632 | ) |  |  | 30.51 |
Granted |  |  | 2,607 |  |  |  | 1.05 |
Outstanding March 26, 2011 |  |  | 224,240 |  |  |  | 7.40 |
Forfeited/cancelled |  |  | (6,494 | ) |  |  | 52.33 |
Outstanding March 31, 2012 |  |  | 217,746 |  |  |  | 6.06 |
Expired |  |  | (208,665 | ) |  |  | 6.01 |
Outstanding March 30, 2013 |  |  | 9,081 |  |  | $ | 7.18 |

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- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph f -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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