Intangible Assets, Net - Components (Details) - USD ($) $ in Thousands |
Feb. 28, 2022 |
May 31, 2021 |
|---|---|---|
| Asset Acquisition [Line Items] | ||
| Finite-Lived Intangible Assets, Gross | $ 6,446 | $ 6,446 |
| Accumulated amortization, net of impairment | (5,403) | (4,793) |
| Total amortizable intangible assets, net | 1,043 | 1,653 |
| Website development costs | ||
| Asset Acquisition [Line Items] | ||
| Finite-Lived Intangible Assets, Gross | 20 | 20 |
| Leronlimab (PRO 140) patent | ||
| Asset Acquisition [Line Items] | ||
| Finite-Lived Intangible Assets, Gross | 3,500 | 3,500 |
| ProstaGene, LLC acquisition | ||
| Asset Acquisition [Line Items] | ||
| Finite-Lived Intangible Assets, Gross | $ 2,926 | $ 2,926 |
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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