General form of registration statement for all companies including face-amount certificate companies

Convertible Instruments and Accrued Interest - Outstanding Balance (Details)

v3.24.0.1
Convertible Instruments and Accrued Interest - Outstanding Balance (Details) - USD ($)
$ in Thousands
Nov. 30, 2023
May 31, 2023
May 31, 2022
Debt Instrument [Line Items]      
Convertible notes payable outstanding principal $ 33,700 $ 36,450 $ 38,319
Less: Unamortized debt discount and issuance costs (786) (1,319) (2,078)
Convertible notes payable, net 32,914 35,131 36,241
Accrued interest on convertible notes 12,936 10,598 5,974
Outstanding convertible notes payable, net and accrued interest 45,850 45,729 42,215
Long-term Convertible Note - April 2, 2021 Note      
Debt Instrument [Line Items]      
Convertible notes payable outstanding principal 4,081 6,081 9,819
Less: Unamortized debt discount and issuance costs (102) (211) (512)
Convertible notes payable, net 3,979 5,870 9,307
Accrued interest on convertible notes 4,261 3,804 2,599
Outstanding convertible notes payable, net and accrued interest 8,240 9,674 11,906
Long-term Convertible Note - April 23, 2021 Note      
Debt Instrument [Line Items]      
Convertible notes payable outstanding principal 29,369 29,369 28,500
Less: Unamortized debt discount and issuance costs (607) (822) (1,566)
Convertible notes payable, net 28,762 28,547 26,934
Accrued interest on convertible notes 8,675 6,789 3,375
Outstanding convertible notes payable, net and accrued interest 37,437 35,336 $ 30,309
Placement Agent Notes      
Debt Instrument [Line Items]      
Convertible notes payable outstanding principal   1,000  
Less: Unamortized debt discount and issuance costs   (286)  
Convertible notes payable, net   714  
Accrued interest on convertible notes   5  
Outstanding convertible notes payable, net and accrued interest   $ 719  
Short Term Notes      
Debt Instrument [Line Items]      
Convertible notes payable outstanding principal 250    
Less: Unamortized debt discount and issuance costs (77)    
Convertible notes payable, net 173    
Outstanding convertible notes payable, net and accrued interest $ 173