Convertible Instruments and Accrued Interest - Convertible notes and accrued interest (Details) - $ / shares  | 
Feb. 28, 2023  | 
Apr. 23, 2022  | 
Apr. 02, 2021  | 
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| Long-term Convertible Note - April 2, 2021 Note | |||
| Debt Instrument [Line Items] | |||
| Interest rate | 10.00% | 10.00% | |
| Conversion price per share | $ 10.00 | $ 10.00 | |
| Long-term Convertible Note - April 23, 2021 Note | |||
| Debt Instrument [Line Items] | |||
| Interest rate | 10.00% | 10.00% | |
| Conversion price per share | $ 10.00 | $ 10.00 | 
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- Definition The price per share of the conversion feature embedded in the debt instrument. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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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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