Stockholders' Equity (Narrative) (Details) - USD ($) |
1 Months Ended | 8 Months Ended | 9 Months Ended | 12 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jun. 30, 2020 |
Oct. 29, 2019 |
Oct. 28, 2019 |
Jun. 26, 2018 |
Feb. 23, 2017 |
Aug. 31, 2020 |
Jun. 30, 2020 |
Mar. 31, 2021 |
Mar. 31, 2020 |
Jun. 30, 2020 |
Jun. 30, 2019 |
Jun. 20, 2018 |
Dec. 19, 2017 |
Feb. 23, 2016 |
Jan. 13, 2016 |
Dec. 31, 2015 |
|
| Stockholders' Equity [Line Items] | ||||||||||||||||
| Preferred Stock, Shares Authorized | 1,000,000 | 1,000,000 | 1,000,000 | 1,000,000 | ||||||||||||
| Cost related to issuance of shares | $ 4,713,000 | $ 381,000 | ||||||||||||||
| Proceeds from exercise of warrants | 6,330,000 | $ 6,300,000 | ||||||||||||||
| Common Stock, Par or Stated Value Per Share | $ 0.001 | $ 0.001 | $ 0.001 | $ 0.001 | ||||||||||||
| Cost for issuance of shares | $ 4,713,000 | 381,000 | ||||||||||||||
| Conversion of Stock, Shares Issued | 28,925,000 | 22,550,000 | 5,887,997 | 2,470,000 | ||||||||||||
| Common Stock, Shares Authorized | 275,000,000 | 275,000,000 | 275,000,000 | 275,000,000 | 275,000,000 | |||||||||||
| Common Stock, Shares, Issued | 140,071,110 | 140,071,110 | 216,133,544 | 140,071,110 | ||||||||||||
| Proceeds from Warrant Exercises | $ 6,330,000 | $ 6,300,000 | ||||||||||||||
| Number of shares issued during the period | 4,500,000 | |||||||||||||||
| Preferred Tracking Stock [Member] | ||||||||||||||||
| Stockholders' Equity [Line Items] | ||||||||||||||||
| Number of shares exchanged for ownership interest | 1 | |||||||||||||||
| Noncontrolling Interest, Amount Represented by Preferred Stock | $ 13,000,000 | |||||||||||||||
| Preferred Stock, Dividend Rate, Percentage | 2.00% | |||||||||||||||
| Preferred Stock, Dividends Per Share, Declared | $ 0 | |||||||||||||||
| Dividends Payable | $ 871,000 | $ 871,000 | $ 1,066,000 | $ 871,000 | ||||||||||||
| Preferred stock, par value (in dollars per share) | $ 0.001 | |||||||||||||||
| Series A Preferred Stock [Member] | ||||||||||||||||
| Stockholders' Equity [Line Items] | ||||||||||||||||
| Preferred Stock, Shares Authorized | 1,000,000 | |||||||||||||||
| Convertible preferred stock, value used to get to conversion price | $ 1,000 | |||||||||||||||
| Convertible preferred stock, conversion price | $ 0.20 | $ 0.90 | ||||||||||||||
| Convertible Preferred Stock, Terms of Conversion | Each share of Series A Preferred was convertible into an amount of shares of common stock determined by dividing the stated value of $1,000 by the conversion price in effect at such time. The original conversion price of $0.90 was adjusted to $0.20 upon the closing of the Company's public offering on October 29, 2019 | |||||||||||||||
| Dividends Payable | $ 0 | |||||||||||||||
| Preferred stock, par value (in dollars per share) | $ 0.001 | |||||||||||||||
| Conversion of Stock, Shares Converted | 3,987 | 2,223 | ||||||||||||||
| Preferred Stock, Shares Outstanding | 0 | 0 | 0 | 0 | ||||||||||||
| Number of shares issued during the period | 6,300 | |||||||||||||||
| Series B Preferred Stock [Member] | ||||||||||||||||
| Stockholders' Equity [Line Items] | ||||||||||||||||
| Preferred Stock, Shares Authorized | 5,785 | 5,785 | 5,785 | 5,785 | 1,000,000 | |||||||||||
| Convertible preferred stock, value used to get to conversion price | $ 1,000 | |||||||||||||||
| Convertible preferred stock, conversion price | $ 0.20 | $ 0.90 | ||||||||||||||
| Maximum Common Stock Percentage | 48.00% | |||||||||||||||
| Convertible Preferred Stock, Terms of Conversion | Each share of Series B Preferred was convertible into an amount of shares of common stock determined by dividing the stated value of $1,000 by the conversion price in effect at such time. The original conversion price of $0.90 was adjusted to $0.20 upon the closing of the Company's public offering on October 29, 2019. See the section below entitled "Public Offering - October 29, 2019" for further information. The number of shares of common stock to be received was limited by the beneficial ownership limitation as defined in the certificate of designation. Subject to limited exceptions, a holder of Series B Preferred would not have the right to exercise any portion of its Series B Preferred if such holder, together with its affiliates, would beneficially own over 48% of the number of shares of common stock outstanding immediately after giving effect to such exercise. | |||||||||||||||
| Dividends Payable | $ 0 | |||||||||||||||
| Preferred stock, par value (in dollars per share) | $ 0.001 | |||||||||||||||
| Conversion of Stock, Shares Converted | 5,785 | 5,785 | ||||||||||||||
| Preferred Stock, Shares Outstanding | 5,785 | 5,785 | 0 | 5,785 | ||||||||||||
| Series C Preferred Stock [Member] | ||||||||||||||||
| Stockholders' Equity [Line Items] | ||||||||||||||||
| Preferred Stock, Shares Authorized | 1,000,000 | |||||||||||||||
| Convertible preferred stock, value used to get to conversion price | $ 1,000 | |||||||||||||||
| Convertible preferred stock, conversion price | $ 0.20 | |||||||||||||||
| Maximum Common Stock Percentage | 4.99% | |||||||||||||||
| Convertible Preferred Stock, Terms of Conversion | Each share of Series C Preferred was convertible into an amount of shares of common stock determined by dividing the stated value of $1,000 by the conversion price of $0.20, subject to adjustment. The number of shares of common stock to be received was limited by the beneficial ownership limitation as defined in the certificate of designation. Subject to limited exceptions, a holder of Series C Preferred would not have the right to exercise any portion of its Series C Preferred if such holder, together with its affiliates, would beneficially own over 4.99% (or, upon election by a holder prior to the issuance of any Series C Preferred Shares, 9.99%) of the number of shares of our common stock outstanding immediately after giving effect to such exercise; provided, however, that upon prior notice to us, such holder may increase such limitation, provided that in no event will the limitation exceed 9.99% and any such increase would not be effective until the 61st day after such notice was delivered to the Company. | |||||||||||||||
| Dividends Payable | $ 0 | |||||||||||||||
| Preferred stock, par value (in dollars per share) | $ 0.001 | |||||||||||||||
| Conversion of Stock, Shares Converted | 4,510 | |||||||||||||||
| Preferred Stock, Shares Outstanding | 0 | 0 | 0 | 0 | ||||||||||||
| Maximum ownership through conversion without prior notice, prior to the issuance of preferred shares | 9.99% | |||||||||||||||
| Omnibus Incentive (the 2020) Plan [Member] | ||||||||||||||||
| Stockholders' Equity [Line Items] | ||||||||||||||||
| Shares available for grant under the plan | 32,000,000 | |||||||||||||||
| iBio CDMO LLC [Member] | ||||||||||||||||
| Stockholders' Equity [Line Items] | ||||||||||||||||
| Number of shares exchanged for ownership interest | 29,990,000 | |||||||||||||||
| Noncontrolling Interest, Ownership Percentage by Parent | 99.99% | 70.00% | 100.00% | |||||||||||||
| Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 30.00% | 70.00% | ||||||||||||||
| Stock Issued During Period, Value, New Issues | $ 13,000,000 | |||||||||||||||
| iBio CDMO LLC [Member] | Preferred Tracking Stock [Member] | ||||||||||||||||
| Stockholders' Equity [Line Items] | ||||||||||||||||
| Stock Issued During Period, Shares, Acquisitions | 1 | |||||||||||||||
| Number of shares exchanged for ownership interest | 29,990,000 | |||||||||||||||
| Acquisition Of Equity Interest, Units Receivable Per Preferred Share | 29,990,000 | |||||||||||||||
| iBio CDMO LLC [Member] | Eastern Affiliate [Member] | ||||||||||||||||
| Stockholders' Equity [Line Items] | ||||||||||||||||
| Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 0.01% | 70.00% | ||||||||||||||