Closing price of common stock.

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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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- Definition

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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- Definition

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

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

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- Definition

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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Share-based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	6 Months Ended
	Dec. 31, 2023	Jun. 30, 2023	May 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding Options	1,397,748	1,284,907
Unrecognized compensation expense related to unvested stock options	$ 2.3
Expected weighted average period for recognition of compensation expense	1 year 6 months 25 days
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding Options	1,397,748
Closing price of common stock	$ 5.8
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
2008 Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized	1,850,739
Shares available for future grant	439,101
2008 Omnibus Plan \| Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding Options	1,297,482
Inducement Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized			217,000
Shares available for future grant	116,734
Inducement Plan \| Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding Options	100,266