Employee Benefit Plans (Tables)

12 Months Ended

May 31, 2025

Retirement Benefits [Abstract]

Schedule of Asset Allocations in the Pension Plan

Information on the Pension Plan assets, using the fair value hierarchy discussed in Note 1 entitled Significant Accounting Polices, is as follows as of May 31:

	2025								2024
(In thousands)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash equivalents	$	1,573	$	—	$	—	$	1,573	$	1,813	$	—	$	—	$	1,813
U.S. government    securities	—		4,100		—		4,100		—		4,354		—		4,354
Corporate debt	—		17,435		—		17,435		—		17,288		—		17,288
Municipal obligations	—		169		—		169		—		143		—		143
Mutual funds:
U.S. securities	24,798		—		—		24,798		20,881		—		—		20,881
International securities	4,389		—		—		4,389		3,793		—		—		3,793
Total	$	30,760	$	21,704	$	—	$	52,464	$	26,487	$	21,785	$	—	$	48,272