Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance at May. 31, 2023	$ 1,346,000	$ 52,705,000	$ (110,000)	$ (42,217,000)	$ 11,724,000
Balance, shares at May. 31, 2023	16,821,646
Foreign currency translation			6,000		6,000
Share-based compensation		170,000			170,000
Net loss				(1,132,000)	(1,132,000)
Balance at Aug. 31, 2023	$ 1,346,000	52,875,000	(104,000)	(43,349,000)	10,768,000
Balance, shares at Aug. 31, 2023	16,821,646
Balance at May. 31, 2023	$ 1,346,000	52,705,000	(110,000)	(42,217,000)	11,724,000
Balance, shares at May. 31, 2023	16,821,646
Foreign currency translation					8,000
Net loss					(4,557,000)
Balance at Feb. 29, 2024	$ 1,346,000	53,338,000	(102,000)	(46,774,000)	7,808,000
Balance, shares at Feb. 29, 2024	16,821,646
Balance at Aug. 31, 2023	$ 1,346,000	52,875,000	(104,000)	(43,349,000)	10,768,000
Balance, shares at Aug. 31, 2023	16,821,646
Foreign currency translation
Share-based compensation		122,000			122,000
Net loss				(1,507,000)	(1,507,000)
Balance at Nov. 30, 2023	$ 1,346,000	52,997,000	(104,000)	(44,856,000)	9,383,000
Balance, shares at Nov. 30, 2023	16,821,646
Foreign currency translation			2,000		2,000
Share-based compensation		341,000			341,000
Net loss				(1,918,000)	(1,918,000)
Balance at Feb. 29, 2024	$ 1,346,000	53,338,000	(102,000)	(46,774,000)	7,808,000
Balance, shares at Feb. 29, 2024	16,821,646
Balance at May. 31, 2024	$ 1,346,000	53,542,000	(102,000)	(48,195,000)	6,591,000
Balance, shares at May. 31, 2024	16,821,646
Foreign currency translation			(6,000)		(6,000)
Share-based compensation		77,000			77,000
Net loss				(1,316,000)	(1,316,000)
Balance at Aug. 31, 2024	$ 1,346,000	53,619,000	(108,000)	(49,511,000)	5,346,000
Balance, shares at Aug. 31, 2024	16,821,646
Balance at May. 31, 2024	$ 1,346,000	53,542,000	(102,000)	(48,195,000)	6,591,000
Balance, shares at May. 31, 2024	16,821,646
Foreign currency translation					(11,000)
Net loss					$ (3,429,000)
Exercise of stock options, shares					19,000
Balance at Feb. 28, 2025	$ 1,629,000	55,642,000	(113,000)	(51,624,000)	$ 5,534,000
Balance, shares at Feb. 28, 2025	20,366,005
Balance at Aug. 31, 2024	$ 1,346,000	53,619,000	(108,000)	(49,511,000)	5,346,000
Balance, shares at Aug. 31, 2024	16,821,646
Foreign currency translation			(4,000)		(4,000)
Share-based compensation		155,000			155,000
Net loss				(950,000)	(950,000)
Net proceeds from ATM	$ 121,000	446,000			567,000
Net proceeds from ATM, shares	1,515,348
Balance at Nov. 30, 2024	$ 1,467,000	54,220,000	(112,000)	(50,461,000)	5,114,000
Balance, shares at Nov. 30, 2024	18,336,994
Foreign currency translation			(1,000)		(1,000)
Share-based compensation		120,000			120,000
Net loss				(1,163,000)	(1,163,000)
Net proceeds from ATM	$ 160,000	1,288,000			1,448,000
Net proceeds from ATM, shares	2,010,011
Exercise of stock options	$ 2,000	14,000			16,000
Exercise of stock options, shares	19,000
Balance at Feb. 28, 2025	$ 1,629,000	$ 55,642,000	$ (113,000)	$ (51,624,000)	$ 5,534,000
Balance, shares at Feb. 28, 2025	20,366,005