Post-effective amendment to a registration statement that is not immediately effective upon filing

Segment Information (Details)

v3.25.3
Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Aug. 31, 2025
Aug. 31, 2024
May 31, 2025
May 31, 2024
Operating expenses:        
Total operating expenses $ 4,945 $ (22,437) $ (9,661) $ 18,058
Operating (loss) gain (4,945) 22,437 9,661 (18,058)
Interest income 94 126 565 217
Interest on convertible notes $ (676) (1,165) (4,424) (4,659)
Amortization of discount on convertible notes   (125) (407) (1,076)
Number of reportable segments not disclosed true      
Amortization of debt issuance costs       (572)
Issuance costs for private placement of shares and warrants through placement agent       (2,819)
Loss on induced conversion   (1,180) (1,180) (6,680)
Finance charges $ (13) (14) (25) (2,584)
Loss on note extinguishment       (13,374)
Gain on restructuring of payables     407  
Loss on derivatives   (852) (852) (236)
Provision (benefit) for income taxes 0 0 0 0
Net (loss) income (5,540) 19,227 3,745 (49,841)
Share based compensation recognized in general and administrative expense 100 100 800 2,400
Share based compensation recognized in research and development expense 100 0 800 0
Single reporting segment | Operating segment        
Operating expenses:        
General and administrative expense 1,622 1,473 6,434 8,403
Research and development 3,144 939 7,278 7,240
Return of clinical expenses   (24,985) (24,985)  
Stock-based compensation expense 179 136 1,612 2,415
Total operating expenses 4,945 (22,437)    
Operating (loss) gain (4,945) 22,437 9,661 (18,058)
Interest income 94 126 565 217
Interest on convertible notes (676) (1,165) (4,424) (4,659)
Amortization of discount on convertible notes   (125) (407) (1,076)
Amortization of debt issuance costs       (572)
Issuance costs for private placement of shares and warrants through placement agent       (2,819)
Loss on induced conversion   (1,180) (1,180) (6,680)
Finance charges (13) (14) (25) (2,584)
Loss on note extinguishment       (13,374)
Gain on restructuring of payables     407  
Loss on derivatives   (852) (852) (236)
Net (loss) income $ (5,540) $ 19,227 $ 3,745 $ (49,841)