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Employee 401(k) Plan (Details) - iBio 401(k) Plan - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Employee 401(k) Plan
Employer matching contribution, percent of match			100.00%
Employer matching contribution, percent of employees gross pay			5.00%
Employer contribution expense	$ 45,000	$ 44,000	$ 151,000	$ 97,000

X

- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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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

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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