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PROPERTY PLANT AND EQUIPMENT NET (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
PROPERTY PLANT AND EQUIPMENT NET    
Leasehold improvements $ 388 $ 404
Equipment 4,845 4,683
Sales demonstration equipment 924 1,066
Property and equipment gross 6,157 6,153
Less accumulated depreciation 5,168 5,081
Property and equipment, net $ 989 $ 1,072