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Intangible Assets (Details) (USD $)	12 Months Ended
Intangible Assets (Details) (USD $)	Apr. 26, 2013	Apr. 27, 2012	Apr. 29, 2011
Intangible Assets [Abstract]
Amortization expense	$ 867,613	$ 1,228,245	$ 554,809

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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