Quarterly report pursuant to sections 13 or 15(d)

Other Intangible Assets (Details)

v2.4.0.8
Other Intangible Assets (Details) (USD $)
 3 Months Ended
Mar. 31, 2014
Permit
Mar. 31, 2013
Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount $ 5,335,000   $ 5,318,000
Accumulated Amortization (2,501,000)   (2,338,000)
Net Carrying Amount 2,834,000   2,980,000
Finite lived intangible assets future amortization expense [Abstract]      
2014 (remaining) 401,000    
2015 492,000    
2016 419,000    
2017 385,000    
2018 355,000    
Total 2,052,000    
Amortization period of definite-lived intangible asset 5 years    
Number of definite lived permit 1    
Amortization expense of intangible assets 176,000 164,000  
Patent [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount 523,000   514,000
Accumulated Amortization (162,000)   (155,000)
Net Carrying Amount 361,000   359,000
Patent [Member] | Minimum [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Useful Lives 8 years    
Patent [Member] | Maximum [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Useful Lives 18 years    
Software [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Useful Lives 3 years    
Gross Carrying Amount 387,000   379,000
Accumulated Amortization (281,000)   (258,000)
Net Carrying Amount 106,000   121,000
Non-compete Agreement [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Useful Lives 1 year 2 months 12 days    
Gross Carrying Amount 265,000   265,000
Accumulated Amortization (213,000)   (174,000)
Net Carrying Amount 52,000   91,000
Customer Contracts [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Useful Lives 0 years 6 months    
Gross Carrying Amount 790,000   790,000
Accumulated Amortization (790,000)   (790,000)
Net Carrying Amount 0   0
Customer Relationships [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Useful Lives 12 years    
Gross Carrying Amount 3,370,000   3,370,000
Accumulated Amortization (1,055,000)   (961,000)
Net Carrying Amount $ 2,315,000   $ 2,409,000