Derivative Liabilities - Fair Value of Convertible Note Redemption Provision (Details) - USD ($) |
12 Months Ended | |||
|---|---|---|---|---|
Jun. 26, 2018 |
May 31, 2021 |
May 31, 2020 |
May 31, 2019 |
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| Derivative [Line Items] | ||||
| Net Proceeds | $ 100,000,000 | $ 15,000,000 | $ 14,877,000 | |
| Change in fair value of derivative liability | (9,542,000) | 1,666,000 | ||
| Redemption Provision Embedded Derivative | ||||
| Derivative [Line Items] | ||||
| Derivative Liability | 2,005 | |||
| Change in fair value of derivative liability | $ 0 | $ 2,000,000.0 | 400,000 | |
| Long Term Convertible Note January 2019 | Redemption Provision Embedded Derivative | ||||
| Derivative [Line Items] | ||||
| Net Proceeds | 5,000 | |||
| Value of liability at its inception | 1,465 | |||
| Derivative Liability | 1,158 | |||
| Long Term Convertible Note June 2018 | ||||
| Derivative [Line Items] | ||||
| Net Proceeds | $ 5,000,000.0 | |||
| Long Term Convertible Note June 2018 | Redemption Provision Embedded Derivative | ||||
| Derivative [Line Items] | ||||
| Net Proceeds | 5,000 | |||
| Value of liability at its inception | 1,285 | |||
| Derivative Liability | $ 847 | |||
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- Definition Amount of embedded derivative liability as on inception date. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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