REVENUE (Details 1) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Net sales	$ 7,563	$ 17,206	$ 49,618	$ 42,692
Systems [Member]
Net sales	1,971	9,821	20,750	26,315
Services [Member]
Net sales	833	1,086	3,694	2,977
Contactors [Member]
Net sales	$ 4,759	$ 6,299	$ 25,174	$ 13,400

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details