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, 2022	80,348,572		3,890,426
Balance at Apr. 30, 2022	$ 803	$ 12,160	$ (2,077)	$ 29,948	$ 40,834
Stock repurchase (in shares)	0		1,639			1,639	[1]
Stock repurchase	$ 0	0	$ (2)	0	(2)
Stock awarded to Director (in shares)	400,000		0
Stock awarded to Director	$ 4	348	$ 0	0	352
Deferred compensation, restricted stock (in shares)	(75,000)		0
Deferred compensation, restricted stock	$ 0	132	$ 0	0	132
Net Income	$ 0	0	$ 0	431	431	$ 431
Balance (in shares) at Jul. 31, 2022	80,673,572		3,892,065
Balance at Jul. 31, 2022	$ 807	12,640	$ (2,079)	30,379	41,747
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	$ 46,781
Stock repurchase (in shares)	0		6,863,789			6,863,789	[1]
Stock repurchase	$ 0	0	$ (5,035)	0	(5,035)
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	$ 42,216

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