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

Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Narrative) (Details)

Basis of Presentation (Narrative) (Details) - USD ($)												4 Months Ended	9 Months Ended		12 Months Ended
Basis of Presentation (Narrative) (Details) - USD ($)	May 07, 2021	Feb. 24, 2021	Jan. 11, 2021	Dec. 10, 2020	Dec. 08, 2020	Nov. 25, 2020	Jun. 17, 2020	May 13, 2020	Mar. 19, 2020	Oct. 29, 2019	Jun. 26, 2018	Jul. 27, 2020	Mar. 31, 2021	Mar. 31, 2020	Jun. 30, 2020	Jun. 20, 2018
Basis of Presentation [Line Items]
Accumulated deficit													$ (173,743,000)		$ (150,420,000)
Net Cash Used in Operating Activities													(22,838,000)	$ (9,478,000)
Cash and cash equivalents plus debt securities													$ 103,900,000
Proceeds from exercise of warrants														$ 6,330,000	$ 6,300,000
Number of shares issued during the period										4,500,000
Common Stock, Par or Stated Value Per Share													$ 0.001		$ 0.001
Lincoln Park Capital Fund, LLC [Member]
Basis of Presentation [Line Items]
Stock Issued During Period, Value, New Issues								$ 1,100,000
Number of shares issued during the period								1,000,000				19,470,000
Shares Issued, Price Per Share								$ 1.09
Gross proceeds from issuance of common stock												$ 25,200,000
Common Stock, Par or Stated Value Per Share									$ 0.001
Authorized value of shares									$ 50,000,000
Term of agreement									36 months
Distribution Agreement [Member] \| UBS Securities, LLC [Member]
Basis of Presentation [Line Items]
Number of shares issued						30,200,000
Net proceeds from issuance of shares						$ 68,830,000	$ 72,000,000
Sales Agreement [Member] \| Cantor Fitzgerald [Member]
Basis of Presentation [Line Items]
Number of shares issued		113,200
Net proceeds from issuance of shares		$ 238,000
Authorized value of shares						$ 100,000,000
Underwriting Agreement [Member] \| Cantor Fitzgerald [Member]
Basis of Presentation [Line Items]
Number of shares issued during the period				29,661,017
Number of shares issued				29,660,000
Net proceeds from issuance of shares			$ 4,600,000	$ 32,300,000
Shares Issued, Price Per Share				$ 1.0955
Number of shares agreed to be issued					29,661,017
Gross proceeds from issuance of common stock				$ 35,200,000
Over Allotment [Member] \| Underwriting Agreement [Member] \| Cantor Fitzgerald [Member]
Basis of Presentation [Line Items]
Number of shares issued			4,240,828
Net proceeds from issuance of shares			$ 4,600,000
Number of shares agreed to be issued					4,449,152
Series A Preferred Stock [Member]
Basis of Presentation [Line Items]
Number of shares issued during the period											6,300
Preferred Stock, Par or Stated Value Per Share																$ 0.001
Convertible Preferred Stock Conversion Price										$ 0.20						$ 0.90
Subsequent Event [Member] \| Sales Agreement [Member] \| Cantor Fitzgerald [Member]
Basis of Presentation [Line Items]
Net proceeds from issuance of shares	$ 2,995,000
Subsequent Event [Member] \| Underwriting Agreement [Member] \| Cantor Fitzgerald [Member]
Basis of Presentation [Line Items]
Number of shares issued	1,716,800
Net proceeds from issuance of shares	$ 2,995,000