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13 - GEOGRAPHIC INFORMATION (Details) - Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues $ 7,622,000 $ 6,915,000
Long-lived Assets 3,866,000 4,032,000
UNITED STATES    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 6,806,000 6,102,000
Long-lived Assets 2,622,000 2,717,000
KOREA, REPUBLIC OF    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 455,000 390,000
CHINA    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 297,000 324,000
Long-lived Assets 875,000 918,000
MEXICO    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 40,000 36,000
Long-lived Assets 166,000 169,000
TAIWAN, PROVINCE OF CHINA    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 17,000 27,000
Long-lived Assets 203,000 228,000
Other Foreign Countries [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Revenues 7,000 36,000
Long-lived Assets $ 0 $ 0