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Net number of non-option equity instruments granted to participants.

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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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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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Value, before forfeiture, of shares granted under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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Stock-Based Compensation Plans (Narrative) (Details) $ in Thousands						12 Months Ended
	Feb. 04, 2022 shares	Jan. 14, 2022 shares	Oct. 02, 2020 USD ($) shares	Oct. 18, 2019 item shares	Oct. 01, 2018 item shares	Aug. 31, 2022 USD ($) item shares	Aug. 31, 2021 USD ($) item shares	Aug. 31, 2020 USD ($) item shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued from treasury stock \| shares						272,060
Shares withheld for tax \| shares						86,125
Shares withheld for tax, fair value						$ 3,500
Capitalized stock-based compensation expense						0
Stock-based compensation						$ 8,286	$ 8,617	$ (573)
Fiscal 2022 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of tranches \| item						2
Fiscal 2021 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of tranches \| item							2
Fiscal 2021 Acquisition Of Strive Talent Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation						$ 800
Fiscal 2021 Acquisition Of Strive Talent Plan [Member] \| Bonus [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period						18 months
Compensation						$ 1,000
Maximum [Member] \| Fiscal 2021 Acquisition Of Strive Talent Plan [Member] \| Bonus [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation						100
Former Principal Owner [Member] \| Fiscal 2021 Acquisition Of Strive Talent Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation						$ 4,200
Trading days						15 days
Shares required to be distributed within, days						45 days
Common Stock [Member] \| 2022 Omnibus Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for payment of consideration \| shares						200,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options exercised \| shares							218,750	350,000
Shares withheld for tax \| shares							51,738	102,656
Shares withheld for tax, fair value							$ 1,300	$ 3,600
Intrinsic value of the exercised options							2,900	8,000
Income tax benefit from exercise of the options							700	1,800
Income tax benefit upon exercise of the options							500
Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense						$ 200
Whole-share grant per eligible director						$ 110
Vesting period of awards						1 year
Cost of common stock issued from treasury						$ 200	400	300
Weighted-average vesting period for recognition						4 months
Total recognized tax benefit from unvested stock awards						$ 200	200	200
Intrinsic value of unvested stock awards						600
Stock-based compensation						673	700	700
Restricted Stock Awards [Member] \| Board Of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of shares awarded						$ 700	$ 700	$ 700
Shares issued under terms of the award \| shares						13,260	28,049	21,420
Performance-Based Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period			2 years
Increase Adjusted EBITDA vesting target			$ 2,000
Unrecognized compensation expense						$ 10,600
Number of individuals who qualified for award \| item						3	4	4
Stock-based compensation						$ 6,133	$ 7,298	$ (1,518)
Performance-Based Award [Member] \| 2022 Omnibus 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						838,000
Performance-Based Award [Member] \| Fiscal 2022 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards	3 years
Performance-Based Award [Member] \| Fiscal 2021 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards			3 years
Performance-Based Award [Member] \| Fiscal 2020 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares may be awarded \| shares				25,101
Increase Adjusted EBITDA vesting target						$ 2,000
Shares authorized to be issued \| shares				150,630
Number of tranches \| item				3
Life of awards				3 years
Expiration date						Aug. 31, 2024
Percent of shares plan participants are entitled to				25.00%
Vesting period of awards				3 years
Performance-Based Award [Member] \| Fiscal 2019 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares may be awarded \| shares					36,470
Service period						2 years
Increase Adjusted EBITDA vesting target						$ 2,000
Shares authorized to be issued \| shares					218,818
Number of tranches \| item					3
Life of awards					3 years
Expiration date						Aug. 31, 2023
Percent of shares plan participants are entitled to					25.00%
Vesting period of awards					3 years
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						36,960	51,581	41,409
Cost basis of shares issued to employee stock purchase plan participants						$ 600	$ 800	$ 600
Proceeds from ESPP participants						1,300	1,100	1,000
Stock-based compensation						$ 239	$ 205	$ 185
Employee Stock Purchase Plan [Member] \| 2017 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares remaining in employee stock purchase plan \| shares						773,000
Tranche One [Member] \| Time-Based Award [Member] \| Fiscal 2022 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of award shares vest	25.00%
Shares issued under terms of the award \| shares	24,649
Tranche One [Member] \| Time-Based Award [Member] \| Fiscal 2021 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of award shares vest			25.00%
Shares issued under terms of the award \| shares			52,696
Tranche Two and Three [Member] \| Performance-Based Award [Member] \| Fiscal 2022 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of performance-based objectives	100.00%
Shares issued under terms of the award \| shares	73,929
Tranche Two and Three [Member] \| Performance-Based Award [Member] \| Fiscal 2021 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of performance-based objectives			100.00%
Shares issued under terms of the award \| shares			158,088
Tranche Two and Three [Member] \| Performance-Based Award [Member] \| Minimum [Member] \| Fiscal 2022 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of performance award to be granted	50.00%
Tranche Two and Three [Member] \| Performance-Based Award [Member] \| Minimum [Member] \| Fiscal 2021 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of performance award to be granted			50.00%
Tranche Two and Three [Member] \| Performance-Based Award [Member] \| Minimum [Member] \| Fiscal 2020 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of performance award to be granted				50.00%
Tranche Two and Three [Member] \| Performance-Based Award [Member] \| Minimum [Member] \| Fiscal 2019 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of performance award to be granted					50.00%
Tranche Two and Three [Member] \| Performance-Based Award [Member] \| Maximum [Member] \| Fiscal 2022 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of performance award to be granted	200.00%
Shares may be awarded \| shares	147,858
Tranche Two and Three [Member] \| Performance-Based Award [Member] \| Maximum [Member] \| Fiscal 2021 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of performance award to be granted			200.00%
Shares may be awarded \| shares			316,176
Tranche Two and Three [Member] \| Performance-Based Award [Member] \| Maximum [Member] \| Fiscal 2020 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of performance award to be granted				200.00%
Tranche Two and Three [Member] \| Performance-Based Award [Member] \| Maximum [Member] \| Fiscal 2019 Long Term Incentive Plan Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of performance award to be granted					200.00%