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Other Intangible Assets (Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Other Intangible Assets          
Gross amount $ 2,987,000   $ 2,987,000   $ 2,987,000
Accumulated amortization (1,954,000)   (1,954,000)   (1,641,000)
Net balance 1,033,000   1,033,000   1,346,000
Amortization expense related to intangible assets 81,000 119,000 313,000 358,000  
Future amortization          
Remainder of Fiscal Year 79,000   79,000    
2015 318,000   318,000    
2016 318,000   318,000    
2017 318,000   318,000    
Total 1,033,000   1,033,000    
Patents
          
Other Intangible Assets          
Estimated useful life     14 years    
Gross amount 429,000   429,000   429,000
Accumulated amortization (429,000)   (429,000)   (429,000)
Non-compete
          
Other Intangible Assets          
Estimated useful life     5 years    
Gross amount 512,000   512,000   512,000
Accumulated amortization (309,000)   (309,000)   (249,000)
Net balance 203,000   203,000   263,000
Customer list
          
Other Intangible Assets          
Estimated useful life     5 years    
Gross amount 2,046,000   2,046,000   2,046,000
Accumulated amortization (1,216,000)   (1,216,000)   (963,000)
Net balance $ 830,000   $ 830,000   $ 1,083,000