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Note 5 - Disclosure of Compensation Related Costs, Share Based Payments (Tables)

3 Months Ended

Jul. 31, 2014

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

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

						Weighted
		Number of				average option option
		option shares				exercise price
Outstanding at April 30, 2014			712,024			$	36.73
Granted			---				---
Exercised			(66,900	)			40.27
Forfeited			---				---
Outstanding at July 31, 2014			645,124			$	36.36

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

Unvested at April 30, 2014			148,546
Granted			91,000
Vested			(38,198	)
Forfeited			(6,136	)
Unvested at July 31, 2014			195,212

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- Definition

Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited 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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- 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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