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Disclosure of Compensation Related Costs, Share Based Payments (Tables)

3 Months Ended

Jul. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Option Activity

	Number of					Weighted
	restricted		Number of			average option
	stock units		option shares			exercise price
Outstanding April 30, 2012	66,198		1,053,509		$		32.59
Granted	32,998		-				-
Exercised	-		(145,798)				23.84
Forfeited	-		(500)				14.08
Outstanding July 31, 2012	99,196		907,211		$		34.01

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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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