v3.26.3
Fair Value Measurements (Tables)
3 Months Ended
Aug. 31, 2026
Fair Value Disclosures [Abstract]  
Schedule of Fair Value of Financial Instruments on Recurring Basis
The Company's fair value hierarchies for its financial assets and liabilities, specifically its warrant liabilities, which require fair value measurement on a recurring basis, are as follows (in thousands):
TotalLevel 1Level 2Level 3
August 31, 2026
Liabilities
Warrant liabilities$5,432 $— $— $5,432 
May 31, 2026
Liabilities
Warrant liabilities$5,454 $— $— $5,454 
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation
The following table sets forth a summary of the changes in the fair value of the Company’s Level 3 financial liabilities during the three months ended August 31, 2026, which were measured at fair value on a recurring basis (in thousands):
Warrant liability
Balance as of May 31, 2026$5,454 
Gain on change in fair value of warrants(22)
Balance as of August 31, 2026$5,432 
Schedule of Carrying Amounts and Estimated Fair Values of Promissory Notes
The following table presents the carrying amounts and estimated fair values of the Company's promissory notes as of August 31, 2026 (in thousands):
Carrying AmountEstimated Fair ValueFair Value Hierarchy
Parker Hannifin Promissory Note$1,370 $1,388 Level 3
B. Riley Promissory Note2,385 2,187 Level 3
Total$3,755 $3,575