Consolidated Statements Shareholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balances at May. 31, 2023	$ 168,000	$ 53,883,000	$ (110,000)	$ (42,217,000)	$ 11,724,000
Balance, shares at May. 31, 2023	2,103,154
Foreign currency translation			8,000		8,000
Share-based compensation		837,000			837,000
Net loss				(5,978,000)	(5,978,000)
Balances at May. 31, 2024	$ 168,000	54,720,000	(102,000)	(48,195,000)	6,591,000
Balance, shares at May. 31, 2024	2,103,154
Foreign currency translation			(3,000)		(3,000)
Share-based compensation		460,000			460,000
Net loss				(4,973,000)	(4,973,000)
Net proceeds from ATM	$ 35,000	1,980,000			2,015,000
Net proceeds from ATM, shares	440,687
Exercise of stock options		15,000			$ 15,000
Exercise of stock options, shares	2,375				2,375
Balances at May. 31, 2025	$ 203,000	$ 57,175,000	$ (105,000)	$ (53,168,000)	$ 4,105,000
Balance, shares at May. 31, 2025	2,546,216