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Supplemental Cash Flow Information (Details) (USD $)
12 Months Ended
Mar. 31, 2013
Apr. 01, 2012
Mar. 27, 2011
Supplemental Cash Flow Information [Abstract]      
Cash paid for income taxes, net of refunds $ 11,847,300 $ 8,191,500 $ 5,183,700
Cash paid for interest 208,300 311,500 427,700
Interest capitalized $ 0 $ 0 $ 0