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INVENTORIES, NET (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
INVENTORIES, NET    
Raw materials, parts and supplies $ 1,060 $ 1,105
Finished products 2,141 2,064
Inventories, net 3,201 3,169
Valuation adjustment for slow inventory $ 1,527 $ 1,527