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Note 14. Stock Based Compensation (Detail) - Weighted Average Assumptions (USD $)	12 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Mar. 27, 2011
Expected term of options (years)		4 years 109 days
Weighted average grant date fair value (in Dollars per share)		2.22
Minimum [Member]
Risk-free interest rate	0.50%	0.70%	1.30%
Expected volatility	37.00%	41.00%	39.00%
Maximum [Member]
Risk-free interest rate	0.60%	1.50%	2.00%
Expected volatility	42.00%	43.00%	40.00%

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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