Note 13 - Common Stock and Earnings Per Share (Tables)

12 Months Ended

Aug. 31, 2017

Notes Tables

Schedule of Stock by Class [Table Text Block]

	Years ended August 31,
(in thousands)	201 7			201 6			201 5
Balance, beginning of year (September 1)		40,038			41,317			41,793
Common stock issued for employee stock plans		693			823			1,213
Repurchase of common stock from employees (1)		(50	)		(28	)		(23	)
Repurchase of common stock under the share repurchase program		(1,555	)		(1,478	)		(1,666	)
Repurchase of common stock under accelerated share repurchase agreement		(103	)		(596	)		—
Balance, end of year (August 31)		39,023			40,038			41,317

Schedule of Weighted Average Number of Shares [Table Text Block]

(in thousands, except per share data)	Net Income (Numerator)		Weighted Average Common Shares (Denominator)		Per Share Amount
Fo r the year ended August 31, 2017
Basic EPS
Income available to common stockholders	$	258,259		39,444	$	6.55
Diluted EPS
Dilutive effect of stock options and restricted stock				198
Income available to common stockholders plus assumed conversions	$	258,259		39,642	$	6.51
For the year ended August 31, 201 6
Basic EPS
Income available to common stockholders	$	338,815		40,880	$	8.29
Diluted EPS
Dilutive effect of stock options and restricted stock				485
Income available to common stockholders plus assumed conversions	$	338,815		41,365	$	8.19
For the year ended August 31, 201 5
Basic EPS
Income available to common stockholders	$	241,051		41,572	$	5.80
Diluted EPS
Dilutive effect of stock options and restricted stock				663
Income available to common stockholders plus assumed conversions	$	241,051		42,235	$	5.71