REVENUE (Details 1) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2023	Feb. 28, 2022
Net sales	$ 17,206	$ 15,283	$ 42,692	$ 30,540
Asia
Net sales	14,849	14,213	34,873	28,066
United States
Net sales	2,343	1,057	7,761	2,458
Europe
Net sales	$ 14	$ 13	$ 58	$ 16

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details