iBio Inc. Annual report pursuant to Section 13 and 15(d)

Finance Lease Obligation (Narrative) (Details)

Finance Lease Obligation (Narrative) (Details) - USD ($)	12 Months Ended		18 Months Ended	24 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Dec. 31, 2019
Rent expense	$ 189,000	$ 150,000
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
iBio CDMO LLC [Member]
Sub lease expiration term	34 years
Renewal term	10 years		10 years
Annual base rent	$ 2,100,000