Shared Based Compensation (Tables)

12 Months Ended

Aug. 31, 2012

Share Based Compensation [Abstract]

Schedule Of Assumptions Used

		Grant Year
Weighed-Average Assumptions		Fiscal 2012
Risk-free interest rate		1.7%
Dividend yield		0.6%
Expected life (years)		7
Volatility		55.9%
Weighted-average grant-date fair value of options granted	$	31.04

Summary Of Stock Option Activity

	Number of Shares	Average Exercise Price		Average Remaining Contractual Term (years)	Aggregate Intrinsic Value ('000s)
Outstanding at August 31, 2010	291,625	$	23.23	3.7	$	3,977
Granted	-		-
Exercised	(153,700)	$	23.28		$	7,001
Forfeitures	(1,350)	$	24.33
Outstanding at August 31, 2011	136,575	$	23.17	3.1	$	5,331
Granted	36,294		58.10
Exercised	(23,588)	$	24.10		$	971
Forfeitures	(2,983)	$	58.10
Outstanding at August 31, 2012	146,298	$	30.97	3.9	$	5,031

Exercisable at August 31, 2010	284,875	$	23.33	3.7	$	3,858
Exercisable at August 31, 2011	136,575	$	23.17	3.1	$	5,331
Exercisable at August 31, 2012	112,987	$	22.97	2.4	$	4,789

Summary Of Share Based Compensation Additional Information

		For the years ended August 31,
$ in thousands	2012		2011		2010
Intrinsic value of stock options exercised	$	971	$	7,001	$	2,042
Cash received from stock option exercises	$	567	$	3,579	$	1,213
Tax benefit realized from stock option exercises	$	368	$	2,628	$	232
Aggregate grant-date fair value of stock options vested		N/A	$	8.13	$	9.72

Summary Of Restricted Stock Units

	Number of Shares		Weighted-Average Grant-Date Fair Value
Restricted stock units at August 31, 2010		75,093	$	38.61
Granted		40,699		55.27
Vested		(40,337)		43.91
Forfeited		(3,629)		51.17
Restricted stock units at August 31, 2011		71,826	$	47.99
Granted		40,212		58.27
Vested		(37,381)		47.87
Forfeited		(7,122)		51.16
Restricted stock units at August 31, 2012		67,535	$	54.35

Schedule Of Performance Stock Status

	Number of Shares		Weighted-Average Grant-Date Fair Value
Performance stock units at August 31, 2010		87,701	$	38.98
Granted		27,932		55.45
Vested		(17,008)		47.27
Forfeited		-		-
Performance stock units at August 31, 2011		98,625	$	42.21
Granted		19,386		57.09
Vested		-		-
Forfeited		(38,987)		43.30
Performance stock units at August 31, 2012		79,024	$	45.32

Schedule Of Share-Based Compensation Expense

		For the years ended August 31,
$ in thousands	2012		2011		2010
Share-based compensation expense included in cost of
operating revenues	$	225	$	157	$	123
Research and development		189		120		60
Sales and marketing		524		574		360
General and administrative		3,001		2,623		1,663
Share-based compensation expense included in
operating expenses		3,714		3,317		2,083
Total share-based compensation expense		3,939		3,474		2,206
Tax benefit		(1,493)		(1,317)		(836)
Share-based compensation expense, net of tax	$	2,446	$	2,157	$	1,370