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PROPERTY AND EQUIPMENT (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Property, Plant and Equipment, Gross $ 2,646 $ 2,281
Less accumulated depreciation (1,866) (1,462)
Property and Equipment, Net 780 819
Office furniture and equipment    
Property, Plant and Equipment, Gross 1,139 1,172
Assembly equipment    
Property, Plant and Equipment, Gross 128 128
Vehicles    
Property, Plant and Equipment, Gross 181 184
Leasehold improvements    
Property, Plant and Equipment, Gross 501 480
Leased Devices [Member]    
Property, Plant and Equipment, Gross $ 697 $ 317