CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Capital Contributed in Excess of Par	Treasury Stock at Cost	Retained Earnings
Beginning balance (in shares) at Apr. 30, 2023		80,871,211
Beginning balance at Apr. 30, 2023	$ 46,781	$ 808	$ 13,647	$ (2,138)	$ 34,464
Beginning balance (in shares) at Apr. 30, 2023				3,979,522
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock repurchase (in Shares)				6,895,833
Stock repurchase	(5,059)			$ (5,059)
Stock award to director (in shares)		300,000
Stock award to director	222	$ 3	219
Deferred compensation, restricted stock (in shares)		1,525,000
Deferred compensation, restricted stock	(15)	$ (15)
Net Income	$ 12,512				12,512
Ending balance (in shares) at Apr. 30, 2024	68,770,856	79,646,211
Ending balance at Apr. 30, 2024	$ 54,441	$ 796	13,866	$ (7,197)	46,976
Ending balance (in shares) at Apr. 30, 2024	10,875,355			10,875,355
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock repurchase (in Shares)				1,716,463
Stock repurchase	$ (2,261)			$ (2,261)
Stock award to director (in shares)		39,430
Stock award to director	62	$ 1	61
Deferred compensation, restricted stock (in shares)		86,704
Deferred compensation, restricted stock	321	$ 1	320
Net Income	$ 12,551				12,551
Ending balance (in shares) at Apr. 30, 2025	67,180,527	79,772,345
Ending balance at Apr. 30, 2025	$ 65,114	$ 798	$ 14,247	$ (9,458)	$ 59,527
Ending balance (in shares) at Apr. 30, 2025	12,591,818			12,591,818