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INTANGIBLE ASSETS (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Intangible assets subject to amortization    
Gross Amount $ 7,960,000 $ 7,860,000
Accumulated amortization (5,529,000) (4,924,000)
Net Book Value 2,431,000 2,936,000
Amortization expense for intangible assets 548,000 732,000
Estimated amortization expense    
2013 338,000  
2014 310,000  
2015 295,000  
2016 295,000  
2017 295,000  
Thereafter 898,000  
Customer lists
    
Intangible assets subject to amortization    
Gross Amount 4,364,000 4,315,000
Accumulated amortization (3,212,000) (2,960,000)
Net Book Value 1,152,000 1,355,000
Customer lists | Minimum
    
Intangible assets subject to amortization    
Estimated Life 8 years  
Customer lists | Maximum
    
Intangible assets subject to amortization    
Estimated Life 10 years  
Trade name
    
Intangible assets subject to amortization    
Gross Amount 946,000 946,000
Accumulated amortization (889,000) (804,000)
Net Book Value 57,000 142,000
Estimated Life 10 years  
Design and technologies
    
Intangible assets subject to amortization    
Gross Amount 2,626,000 2,575,000
Accumulated amortization (1,427,000) (1,160,000)
Net Book Value 1,199,000 1,415,000
Design and technologies | Minimum
    
Intangible assets subject to amortization    
Estimated Life 8 years  
Design and technologies | Maximum
    
Intangible assets subject to amortization    
Estimated Life 10 years  
Patents
    
Intangible assets subject to amortization    
Gross Amount 24,000 24,000
Accumulated amortization (1,000) 0
Net Book Value $ 23,000 $ 24,000