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Significant Accounting Policies - Basic and Diluted Earnings Per Common Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Mar. 26, 2016
Mar. 28, 2015
Mar. 29, 2014
Numerator:      
Net income (loss) $ 5,438 $ (8,632) $ (5,801)
Denominator:      
Weighted-average common shares outstanding 17,961 17,937 16,617
Income (loss) per common share $ 0.30 $ (0.48) $ (0.35)
Numerator:      
Net income (loss) $ 5,438 $ (8,632) $ (5,801)
Denominator:      
Weighted-average common shares outstanding 17,961 17,937 16,617
Dilutive effect of stock options, warrants and stock appreciation rights (SARs) 0 0 0
Weighted-average common shares outstanding - diluted 17,961 17,937 16,617
Diluted income (loss) per common share $ 0.30 $ (0.48) $ (0.35)