Stockholders' Equity (SARS Activity) (Details) - SARS - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Aug. 31, 2021	Aug. 31, 2020
SARS Outstanding
SARS Outstanding as of beginning of period (in shares)	15,000
SARS exercised (in shares)	(15,000)
SARS Outstanding as of end of period (in shares)	0	15,000
Aggregate intrinsic value, outstanding and exercisable	$ 0	$ 235
Weighted- Average Exercise Price
Weighted-Average Exercise Price, Outstanding as of beginning of period (in dollars per share)	$ 18.49
Weighted-Average Exercise Price, SARS exercised (in dollars per share)	18.49
Weighted-Average Exercise Price, Outstanding as of end of period (in dollars per share)	$ 0	$ 18.49
Weighted- Average Remaining Contractual Life, Outstanding (in years)	0 years	1 year 1 month 17 days

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

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-Publisher FASB
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-Topic 718
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

+ References

No definition available.

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

+ References

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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