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

Finance Lease Obligation (Narrative) (Details)

Finance Lease Obligation (Narrative) (Details) - iBio CDMO LLC [Member] - USD ($)	3 Months Ended		9 Months Ended		15 Months Ended	24 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Dec. 31, 2019
Sub lease expiration term			34 years
Renewal term	10 years		10 years		10 years
Annual base rent			$ 2,100,000
Percentage rent expense	$ 50,000	$ 42,000	$ 135,000	$ 109,000
Second Eastern Affiliate [Member] \| First $5,000,000 of Gross Sales [Member]
Payment in addition to base rent, percentage of gross sales			7.00%
Payment in addition to base rent, gross sales threshold amount			$ 5,000,000
Second Eastern Affiliate [Member] \| Gross Sales Between $5,000,001 and $25,000,000 [Member]
Payment in addition to base rent, percentage of gross sales			6.00%
Second Eastern Affiliate [Member] \| Gross Sales Between $25,000,001 and $50,000,000 [Member]
Payment in addition to base rent, percentage of gross sales			5.00%
Second Eastern Affiliate [Member] \| Gross sales Between $50,000,001 and $100,000,000 [Member]
Payment in addition to base rent, percentage of gross sales			4.00%
Second Eastern Affiliate [Member] \| Gross Sales Between $100,000,001 and $500,000,000 [Member]
Payment in addition to base rent, percentage of gross sales			3.00%
Second Eastern Affiliate [Member] \| Gross Sales Less than $5,000,000 [Member]
Payment in addition to base rent, gross sales threshold amount						$ 5,000,000
Second Eastern Affiliate [Member] \| Gross Sales Less than $10,000,000 [Member]
Payment in addition to base rent, gross sales threshold amount					$ 10,000,000
Second Eastern Affiliate [Member] \| Maximum [Member] \| Gross Sales Between $5,000,001 and $25,000,000 [Member]
Payment in addition to base rent, gross sales threshold amount			$ 25,000,000
Second Eastern Affiliate [Member] \| Maximum [Member] \| Gross Sales Between $25,000,001 and $50,000,000 [Member]
Payment in addition to base rent, gross sales threshold amount			50,000,000
Second Eastern Affiliate [Member] \| Maximum [Member] \| Gross sales Between $50,000,001 and $100,000,000 [Member]
Payment in addition to base rent, gross sales threshold amount			100,000,000
Second Eastern Affiliate [Member] \| Maximum [Member] \| Gross Sales Between $100,000,001 and $500,000,000 [Member]
Payment in addition to base rent, gross sales threshold amount			500,000,000
Second Eastern Affiliate [Member] \| Minimum [Member] \| Gross Sales Between $5,000,001 and $25,000,000 [Member]
Payment in addition to base rent, gross sales threshold amount			5,000,001
Second Eastern Affiliate [Member] \| Minimum [Member] \| Gross Sales Between $25,000,001 and $50,000,000 [Member]
Payment in addition to base rent, gross sales threshold amount			25,000,001
Second Eastern Affiliate [Member] \| Minimum [Member] \| Gross sales Between $50,000,001 and $100,000,000 [Member]
Payment in addition to base rent, gross sales threshold amount			50,000,001
Second Eastern Affiliate [Member] \| Minimum [Member] \| Gross Sales Between $100,000,001 and $500,000,000 [Member]
Payment in addition to base rent, gross sales threshold amount			$ 100,000,001