Incentive Compensation Plan - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018	Jan. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total intrinsic value of stock options exercised	$ 100
Expected dividend	0.00%
Fair value of common stock		$ 10.75	$ 6.70
Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Plan authorized awards to be granted				700,000
Stock-based compensation expense	$ 860	$ 590	$ 105
Stock options outstanding	531,747	405,302	417,272
Weighted average grant date fair value of options granted	$ 11.01	$ 6.91	$ 4.05
Fair value of options vested	$ 600	$ 600	$ 100
Unrecognized stock-based compensation	$ 2,000
Unvested stock options expected to be recognized on a straight-line basis over a weighted average period	2 years 6 months 14 days

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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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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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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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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