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Licensing and Other Arrangements - Rezolute - Second and Third Amendments (Details) $ in Thousands |  |  |  |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2019 USD ($) | Jan. 30, 2019 USD ($) | Jan. 07, 2019 USD ($) item | Apr. 03, 2018 USD ($) | Dec. 06, 2017 shares | Mar. 31, 2019 USD ($) | Mar. 31, 2018 USD ($) | Aug. 31, 2019 USD ($) item | Mar. 31, 2020 USD ($) installment | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2020 shares | Dec. 31, 2019 USD ($) shares | Dec. 31, 2018 USD ($) | Jun. 30, 2019 USD ($)
Licensing and other arrangements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers |  |  |  |  |  |  |  |  | $ 500 |  |  | $ 8,026 |  |  |  |
Provision for bad debt |  |  |  |  |  |  |  |  | 1,409 |  |  |  |  |  |  |
Rezolute | License Agreement and Common Stock Purchase Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Licensing and other arrangements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of Rezolute's common stock eligible to receive |  |  | $ 8,500 |  |  |  | $ 8,500 |  |  |  |  |  |  |  |  |
Number of future cash payments upon closing of the qualified financing | item |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |  |
Future cash payments upon closing of the qualified financing |  |  | $ 8,500 |  |  |  |  |  |  |  |  | 8,500 |  |  |  |
Percentage of net proceeds of each future financing upon closing of the qualified financing |  |  | 15.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds received by third party from preferred stock financing |  | $ 25,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consideration received following qualified financing event |  | 5,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reimbursable technology transfer expense received |  | $ 300 |  | $ 300 |  |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers |  |  |  |  |  | $ 2,500 |  |  |  |  | $ 6,000 |  |  |  | $ 1,800 |
Doubtful revenue reversal of future cash payments |  |  |  |  |  | $ 2,500 |  | $ 3,600 |  |  |  | $ 2,500 |  |  |  |
Number of common stock financing events | item |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |
Early payment of unrecognized future cash payments |  |  |  |  |  |  |  | $ 3,400 |  |  |  |  |  |  |  |
Unrecognized future cash payments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6,000
Future cash payments received | $ 1,500 |  |  |  |  |  |  |  | 400 | $ 1,000 | $ 4,900 |  |  |  |  |
Upfront consideration to incremental discount for future payment |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |
Outstanding receivable |  |  |  |  |  |  |  |  | 800 |  |  |  |  |  |  |
Contract assets |  |  |  |  |  |  |  |  | 0 | 0 |  |  |  | $ 0 |  |
Contract liabilities |  |  |  |  |  |  |  |  | 0 | 0 |  |  |  | 0 |  |
Capitalized contract costs |  |  |  |  |  |  |  |  | 0 | $ 0 |  |  |  | $ 0 |  |
Rezolute | License Agreement and Common Stock Purchase Agreement | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Licensing and other arrangements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Future cash payments of revenue recognized |  |  | $ 8,500 |  |  |  |  |  |  |  |  |  |  |  |  |
Rezolute | License Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Licensing and other arrangements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reimbursable technology transfer expense received |  |  |  | $ 300 |  |  |  |  |  |  |  |  |  |  |  |
Revenue from contracts with customers |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |
Future cash payments of revenue recognized |  |  |  |  |  |  |  |  | $ 2,600 |  |  |  |  |  |  |
Number of quarterly payments | installment |  |  |  |  |  |  |  |  | 7 |  |  |  |  |  |  |
Payment period following closing of Qualified Financing |  |  |  |  |  |  |  |  | 15 days |  |  |  |  |  |  |
Provision for bad debt |  |  |  |  |  |  |  |  | $ 1,400 |  |  |  |  |  |  |
Rezolute | Common Stock Purchase Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Licensing and other arrangements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Rezolute's shares Company has right and option to sell if Rezolute does not list common stock shares on national exchange | shares |  |  |  |  | 5,000,000 |  |  |  |  |  |  |  |  | 5,000,000 |  |
Rezolute | Common Stock Purchase Agreement | Forecast | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Licensing and other arrangements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Rezolute's shares Company has right and option to sell if Rezolute does not list common stock shares on national exchange | shares |  |  |  |  |  |  |  |  |  |  |  |  | 2,500,000 |  |  |

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