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Other Intangible Assets (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Other Intangible Assets      
Gross amount $ 2,987,000 $ 3,247,000  
Accumulated amortization (1,641,000) (1,163,000)  
Net balance 1,346,000 2,084,000  
Amortization expense related to intangible assets 478,000 164,000 195,000
Future amortization      
2014 393,000    
2015 318,000    
2016 318,000    
2017 317,000    
Total 1,346,000    
Patents
      
Other Intangible Assets      
Estimated useful life 14 years    
Gross amount 429,000 429,000  
Accumulated amortization (429,000) (429,000)  
Non-compete
      
Other Intangible Assets      
Estimated useful life 5 years    
Gross amount 512,000 512,000  
Accumulated amortization (249,000) (156,000)  
Net balance 263,000 356,000  
Customer list
      
Other Intangible Assets      
Estimated useful life 5 years    
Gross amount 2,046,000 2,306,000  
Accumulated amortization (963,000) (578,000)  
Net balance $ 1,083,000 $ 1,728,000