Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Nov. 30, 2025	May 31, 2025
Right-of-use assets, net of accumulated amortization	$ 1,388,000	$ 1,223,000
Intangible assets, net of accumulated amortization	$ 79,000	$ 69,000
Preferred stock, par value	$ 0	$ 0
Preferred stock, shares authorized	4,428,571	4,428,571
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.08	$ 0.08
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	2,947,966	2,546,216
Common stock, shares outstanding	2,947,966	2,546,216
Series A Preferred Stock [Member]
Preferred stock, par value	$ 0.08	$ 0.08
Preferred stock, shares authorized	571,429	571,429
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0