Convertible Instruments - Activity related to the 2019 Short-term Convertible Notes (Detail) - Two Thousand And Nineteen Short Term Convertible Notes [Member] - USD ($) $ in Thousands |
2 Months Ended | 3 Months Ended | 12 Months Ended | |
---|---|---|---|---|
Nov. 14, 2019 |
Nov. 30, 2019 |
May 31, 2020 |
May 31, 2019 |
|
Short-term Debt [Line Items] | ||||
Face value of short-term convertible Notes | $ 5,460 | $ 5,460 | ||
Unamortized discount | (1,470) | |||
Unamortized issuance costs | (404) | |||
Accrued interest converted into principal | 154 | |||
Note repayment | $ (700) | (460) | ||
Note conversions into common stock | $ (200) | (5,154) | ||
Carrying value, current | $ 5,900 | $ 5,200 | $ 3,586 |
X | ||||||||||
- Definition The amount of accrued interest payable capitalized and converted in to principal. No definition available.
|
X | ||||||||||
- Definition Carrying value as of the balance sheet date of the portion of long-term debt due within one year or the operating cycle if longer identified as Convertible Notes Payable. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
X | ||||||||||
- Definition The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
X | ||||||||||
- Definition Amount, after accumulated amortization, of debt discount. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
X | ||||||||||
- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
X | ||||||||||
- Definition The cash outflow for a borrowing supported by a written promise to pay an obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
X | ||||||||||
- 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.
|
X | ||||||||||
- Details
|