Significant Accounting Policies (Schedule of Weighted Average Assumptions for Share-based Awards Granted) (Detail)	0 Months Ended	3 Months Ended	6 Months Ended	9 Months Ended		12 Months Ended
	Jul. 25, 2012	Mar. 31, 2012	Jan. 26, 2012	Mar. 30, 2013	Mar. 31, 2012	Jul. 27, 2011
Accounting Policies [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		6,667		7,500	54,167
Expected dividend yield	0.00%		0.00%			0.00%
Risk - free interest rate	0.46%		0.52%			1.16%
Expected volatility	66.50%		64.90%			65.50%
Expected life	4 years		4 years			4 years