Derivative Liabilities - Fair value (Detail) - USD ($) shares in Thousands, $ in Thousands |
12 Months Ended | 33 Months Ended | |||
|---|---|---|---|---|---|
May 31, 2021 |
May 31, 2020 |
May 31, 2019 |
May 31, 2019 |
Sep. 15, 2016 |
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| Derivative [Line Items] | |||||
| Fundamental transaction, percentage ownership | 50.00% | ||||
| Change in fair value of derivative liability | $ (9,542) | $ 1,666 | |||
| Warrant Derivative Liability | |||||
| Derivative [Line Items] | |||||
| Number of shares indexed | 0 | 7,733 | 7,733 | 7,733 | |
| Number of shares redeemed | 7,733 | ||||
| Derivative liability | $ 0 | $ 402 | $ 402 | $ 5,179 | |
| Change in fair value of derivative liability | (11,547) | $ 900 | $ 4,777 | ||
| Fair value of warrants exercised | $ (11,949) | ||||
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- Definition The amount of derivative liability that was settled through exercise of warrants during the period. No definition available.
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- Definition The number of indexed shares redeemed or cancelled during the period. No definition available.
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- Definition The percentage ownership acquired by a person or group that is defined as a fundamental, change of control, transaction. No definition available.
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 The number of issuer's shares to which the forward contract is indexed. 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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- Details
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