iBio Inc. Quarterly report pursuant to Section 13 or 15(d)

Employee 401(K) Plan (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
Employee 401(K) Plan (Narrative) (Details) - USD ($)	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Employee 401(K) Plan [Abstract]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match			100.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay			5.00%
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 34,000	$ 22,000	$ 95,000	$ 79,000

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