Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock, Common [Member]	Retained Earnings [Member]	Parent [Member]	Total
Balance (in shares) at Apr. 30, 2023	80,871,211		3,979,522
Balance at Apr. 30, 2023	$ 808	$ 13,647	$ (2,138)	$ 34,464	$ 46,781
Stock repurchase	$ 0	0	$ (5,035)	0	(5,035)
Stock repurchase (in shares)			6,863,789			6,863,789	[1]
Deferred compensation, restricted stock (in shares)	(1,300,000)		0
Deferred compensation, restricted stock	$ (13)	(236)	$ 0	0	(249)
Net Income	$ 0	0	$ 0	719	719	$ 719
Balance (in shares) at Jul. 31, 2023	79,571,211		10,843,311
Balance at Jul. 31, 2023	$ 795	13,411	$ (7,173)	35,183	42,216
Balance (in shares) at Apr. 30, 2024	79,646,211		10,875,355
Balance at Apr. 30, 2024	$ 796	13,866	$ (7,197)	46,976	54,441	$ 54,441
Stock repurchase	$ 0	0	$ (464)	0	(464)
Stock repurchase (in shares)			500,000			500,000	[1]
Deferred compensation, restricted stock (in shares)	0		0
Deferred compensation, restricted stock	$ 0	69	$ 0	0	69
Net Income	$ 0	0	$ 0	2,246	2,246	$ 2,246
Balance (in shares) at Jul. 31, 2024	79,646,211		11,375,355
Balance at Jul. 31, 2024	$ 796	$ 13,935	$ (7,661)	$ 49,222	$ 56,292	$ 56,292

[1] These shares of common stock were purchased through a private transaction