Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Feb. 29, 2024	May 31, 2023
Leases [Abstract]
Operating lease ROU asset	$ 3,854	$ 5,113
Current operating lease liabilities	1,645	1,922
Non-current operating lease liabilities	2,322	3,316
Total lease liabilities	$ 3,967	$ 5,238
Operating lease, right-of-use asset, statement of financial position, extensible list	Other assets	Other assets
Operating lease, liability, current, statement of financial position, extensible list	Other current liabilities	Other current liabilities
Operating lease, liability, noncurrent, statement of financial position, extensible list	Other long-term liabilities	Other long-term liabilities
Weighted average remaining term (in years)	2 years 6 months 29 days
Weighted average discount rate	4.70%