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BALANCE SHEET INFORMATION (Details 1) - USD ($)
$ in Thousands
Aug. 31, 2023
May 31, 2023
BALANCE SHEET INFORMATION    
Leasehold improvements $ 1,325 $ 1,310
Furniture and fixtures 725 706
Machinery and equipment 5,787 5,445
Test equipment 3,083 2,998
Property and equipment, gross 10,920 10,459
Less: Accumulated depreciation and amortization (7,837) (7,700)
Property and equipment, net $ 3,083 $ 2,759