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Note 13 - Stock-Based Compensation and Purchase Plans (Tables)

12 Months Ended

Jun. 30, 2015

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

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

		Restricted Stock Awards
		Number				Aggregate
		of				Intrinsic
		Shares				Value
Outstanding, June 30, 2014			144,095			$	10,732,196
Granted			43,598
Exercised / vested			(71,220	)			2,831,554
Canceled			(11,394	)
Outstanding, June 30, 2015			105,079			$	8,398,964

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		2015				2014				2013
Risk-free interest rates			0.88	%			0.70	%			0.25	%
Expected life of option grants (in years)			3				3				3
Expected volatility of underlying stock			32.0	%			38.9	%			47.4	%
Expected quarterly dividends (per share)		$	0.10			$	0.08			$	0.07

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

		Annual Component												Performance Stock Units
						Weighted
		Number				Average				Aggregate				Number				Aggregate
		of				Exercise				Intrinsic				of				Intrinsic
		Shares				Price				Value				Shares				Value
Non-vested, June 30, 2014			52,432			$	29.91			$	1,360,566				40,366			$	2,156,759
Granted			14,650				55.76								31,199
Vested			(21,298	)			23.00				1,089,126				(24,137	)			1,459,558
Forfeited			(2,235	)			35.53								(18,978	)
Non-vested, June 30, 2015			43,549			$	41.70			$	794,828				28,450			$	1,873,626

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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



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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

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



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-Name Accounting Standards Codification



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

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