REVENUE (Details 2) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2022	Nov. 30, 2021
Net sales	$ 14,815	$ 9,611	$ 25,486	$ 15,257
Products and Services Transferred at a Point in Time
Net sales	14,427	9,270	24,681	14,560
Services Transferred over Time
Net sales	$ 388	$ 341	$ 805	$ 697

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