Earning Per Share-Diluted (detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Diluted
Earnings (Loss) Attributable to Common Stock	$ 6,387	$ 14,010	$ 7,685	$ 21,920
Dividends Convertible Preferred Stock Cash	5	5	10	10
Net Income (Loss) Available to Common Stockholders, Diluted	$ 6,392	$ 14,015	$ 7,695	$ 21,930
Weighted Average Number of Shares Outstanding, Basic	10,748	11,374	10,750	11,531
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	4	4	4	4
Incremental Common Shares Attributable to Conversion of Preferred Stock	67	67	67	67
Weighted Average Number of Shares Outstanding, Diluted	10,819	11,445	10,821	11,602
Diluted Earnings (Loss) per Common Share	$ 0.59	$ 1.22	$ 0.71	$ 1.89

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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+ Details