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

Stockholders' Equity (Lincoln Park Stock Purchase Agreement) (Details) - Lincoln Park Stock Purchase Agreement - USD ($)		3 Months Ended
	Aug. 04, 2023	Mar. 31, 2024	Sep. 30, 2023
Maximum amount of common stock agreed to sell	$ 10,000,000.0
Maximum number of common stock directed to sell through written notice	5,000
Maximum commitment in single regular sale of common stock	$ 500,000
Minimum Price per share of common stock to sell additional shares	$ 4.00
Shares issued	10,573	21,457	181,141
Additional commitment shares	10,573
Proceeds from offering	$ 5,000,000	$ 122,000	$ 1,200,000
If the closing sale price of the Common Stock on the NYSE American on the applicable purchase date is not below $20.00
Closing price per share of common stock	$ 20.00
Maximum number of common stock to be sold	7,500
If the closing sale price of the Common Stock on the NYSE American on the applicable purchase date is not below $40.00
Closing price per share of common stock	$ 40.00
Maximum number of common stock to be sold	10,000
Minimum [Member]
Closing price per share of common stock	$ 3.00