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

6 Months Ended

Oct. 31, 2013

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

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

						Weighted
		Number of				average option
		option shares				exercise price
Outstanding at April 30, 2013			854,809			$	34.64
Granted			-				-
Exercised			(113,735	)			24.25
Forfeited			-				-
Outstanding at October 31, 2013			741,074			$	36.23

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

Unvested at April 30, 2013			71,196
Granted			91,650
Vested			(14,000	)
Forfeited			-
Unvested at October 31, 2013			148,846

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- Definition

Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value.

+ References

No definition available.

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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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