Investments (Tables)

9 Months Ended

Jan. 25, 2013

[Investments Abstract]

Schedule of Long-Term Investments

	January 25,		April 27,
	2013		2012
Available-for-sale convertible debt security (1)	$	1,450,000	$	5,508,768
Cost method equity securities (2)		6,588,200		4,000,000
Carrying amount – long-term investments	$	8,038,200	$	9,508,768