Fair value of shares awarded

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Number Of Additional Individual Vesting Conditions

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Number of Individual Vesting Conditions

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Number of individuals who qualified for award

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Number of Performance Measures

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Total Intrinsic Value

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Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Value, Granted And Vested In Period

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Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Recognized Incremental Compensation Cost

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Shares remaining in employee stock purchase plan

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Threshold of consulting days performed over the career in order to receive common stock

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Threshold of cumulative sales over the career in order to receive common stock

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Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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The cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards other than stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of additional shares authorized for issuance under an established share-based compensation plan.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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Number of share instruments newly issued under a share-based compensation plan.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Purchase price of common stock expressed as a percentage of its fair value.

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For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

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Value, before forfeitures, of stock or other type of equity granted of any equity-based compensation plan other than an employee stock ownership plan (ESOP).

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Number of shares issued during the period as a result of an employee stock purchase plan.

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Number of share options (or share units) exercised during the current period.

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Number of treasury shares (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

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Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.

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Equity impact of the value of treasury stock (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

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Stock-Based Compensation Plans (Narrative) (Details) $ in Thousands			3 Months Ended	12 Months Ended
	May 31, 2017 shares	Jan. 23, 2015 shares	Aug. 31, 2015 USD ($) item shares	Aug. 31, 2017 USD ($) employee shares	Aug. 31, 2016 USD ($) employee shares	Aug. 31, 2015 USD ($) employee item shares	Aug. 31, 2011 USD ($)	Oct. 18, 2016 item shares	Nov. 12, 2015 item shares	Nov. 30, 2013 item shares	Dec. 01, 2012 item shares	Aug. 31, 2012 item shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued from treasury stock \| shares				217,581
Shares withheld for tax \| shares				51,156
Capitalized stock-based compensation expense \| $				$ 0	$ 0	$ 0
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense \| $				$ 0
Stock options exercised \| shares				62,500	0	0
Aggregate intrinsic value \| $				$ 500
Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based incremental compensation expense from plan modification \| $						$ 700
Recognized stock-based incremental compensation expense from plan modification \| $				$ 600		$ 500
Fiscal 2017 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized to be issued \| shares								183,381
Number of individual vesting conditions \| item								6
Number of performance measures \| item								2
Fiscal 2016 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized to be issued \| shares									231,276
Number of individual vesting conditions \| item									6
Number of performance measures \| item									2
Fiscal 2015 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized to be issued \| shares			112,464			112,464
Number of individual vesting conditions \| item			6			6
Number of performance measures \| item			2			2
Fiscal 2015 Long Term Incentive Plan Award [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Life of awards				6 years
Fiscal 2014 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized to be issued \| shares										89,418
Number of individual vesting conditions \| item										6
Number of performance measures \| item										2
Fiscal 2013 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized to be issued \| shares											68,085
Number of individual vesting conditions \| item											6
Number of performance measures \| item											2
Fiscal 2012 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized to be issued \| shares												106,101
Number of individual vesting conditions \| item												6
Number of performance measures \| item												2
Unvested Share Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense \| $				$ 200
Whole-share grant per eligible director \| $				$ 75
Vesting period of awards				1 year
Cost of common stock issued from treasury \| $				$ 400	$ 300	$ 300
Weighted-average vesting period for recognition				4 months
Total recognized tax benefit from unvested stock awards \| $				$ 200	$ 100	$ 100
Intrinsic value of unvested stock awards \| $				$ 600
Unvested Share Awards [Member] \| Board of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued under terms of the award \| shares				29,834	25,032	24,210
Fair value of shares awarded \| $				$ 500	$ 500	$ 500
Client Partner And Consultant Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional individual vesting conditions \| item			0
Value of shares granted and fully vested \| $			$ 10				$ 15
Number of individuals who qualified for award			5	9	4	5
Threshold of cumulative sales over the career in order to receive common stock \| $							$ 20,000
Threshold of consulting days performed over the career in order to receive common stock							1500 days
2015 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized additional shares of common stock for issuance \| shares		1,000,000
Shares available for future grants \| shares				494,000
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Price of common stock as a percent of the average fair market value				85.00%
Shares issued to employee stock purchase plan participants \| shares				43,199	49,375	42,687
Cost basis of shares issued to employee stock purchase plan participants \| $				$ 600	$ 700	$ 600
Proceeds from ESPP participants \| $				$ 700	$ 700	$ 700
2017 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized additional shares of common stock for issuance \| shares	1,000,000
Shares remaining in employee stock purchase plan \| shares				987,000