Share-based Compensation - Additional Information (Detail) $ in Millions	3 Months Ended
Sep. 30, 2021 USD ($) shares	May 31, 2021 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to unvested stock options \| $	$ 13.0
Expected weighted average period for recognition of compensation expense	1 year 9 months 18 days
Employee Stock Option \| Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period	12 months
Share-based compensation arrangement by share-based payment award, expiration period	10 years
Employee Stock Option \| Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option vested percentage	25.00%
Share-based compensation arrangement by share-based payment award, award vesting period	36 months
Share-based compensation arrangement by share-based payment award, expiration period	10 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to unvested stock options \| $	$ 0.3
Expected weighted average period for recognition of compensation expense	9 months
Number of common stock to be received for each RSUs	1
Vested	(130,000)
Common stock issued	63,855
Shares withheld for tax withholding	66,145
Number of shares for each unit of restricted stock	1.25
2008 Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized	29,014,794
Shares available for future grant	7,106,383
Inducement Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized		2,500,000
Shares available for future grant	1,772,000

Number Of Shares For Each Unit Of Restricted Stock

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Number of shares to be received.

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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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Amount of cost to be recognized for option under share-based payment arrangement.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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 shares authorized for issuance under share-based payment arrangement.

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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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Number of shares issued under share-based payment arrangement.

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Percentage of vesting of award under share-based payment arrangement.

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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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Number of options vested.

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Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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