Annual report pursuant to section 13 and 15(d)

GOODWILL AND OTHER INTANGIBLE ASSETS (Details)

v2.4.0.6
GOODWILL AND OTHER INTANGIBLE ASSETS (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Goodwill [Roll Forward]      
Goodwill, Beginning Balance $ 29,186,000 $ 15,330,000  
Goodwill Recorded in connection with Earn-Out   840,000  
Additional Goodwill Recorded as Result of Acquisition   13,016,000  
Reassignment of goodwill from change in reporting unit   0  
Goodwill, Ending Balance 29,186,000 29,186,000 15,330,000
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount 5,033,000 4,985,000  
Accumulated Amortization (1,423,000) (468,000)  
Net Carrying Amount 3,610,000 4,517,000  
Fair value of acquired intangible assets 4,429,000    
Amortization period of definite-lived intangible asset 5 years    
Number of definite lived permit 1    
Permit capitalized amount 545,000    
Amortization period of permit (in years) P10Y    
Changes in the carrying amount of permits [Abstract]      
Beginning balance 16,854,000 16,854,000 16,863,000
PCB permit amortized (55,000)   (55,000)
Permit enhancement at PFF     384,000
Permits in progress     46,000
Ending balance 16,799,000 16,854,000 16,854,000
Definite lived intangible assets future amortization expense [Abstract]      
2013 645,000    
2014 602,000    
2015 506,000    
2016 429,000    
2017 354,000    
Total 2,536,000    
Amortization expense of intangible assets 675,000 241,000 79,000
Patents [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Gross Carrying Amount 453,000 402,000  
Accumulated Amortization (105,000) (77,000)  
Net Carrying Amount 348,000 325,000  
Patents [Member] | Minimum [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Useful Lives 8 years    
Patents [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 380,000 158,000  
Accumulated Amortization (145,000) (66,000)  
Net Carrying Amount 235,000 92,000  
Noncompete Agreements [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Useful Lives 5 years    
Gross Carrying Amount 265,000 265,000  
Accumulated Amortization (62,000) (9,000)  
Net Carrying Amount 203,000 256,000  
Customer Contracts [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Useful Lives 6 months    
Gross Carrying Amount 565,000 790,000  
Accumulated Amortization (565,000) (230,000)  
Net Carrying Amount 0 560,000  
Customer Relationships [Member]
      
Finite-Lived Intangible Assets [Line Items]      
Useful Lives 12 years    
Gross Carrying Amount 3,370,000 3,370,000  
Accumulated Amortization (546,000) (86,000)  
Net Carrying Amount 2,824,000 3,284,000  
Treatment [Member]
      
Goodwill [Line Items]      
Goodwill after earn-out and acquisition   14,840,000  
Goodwill [Roll Forward]      
Goodwill, Beginning Balance   14,000,000  
Goodwill Recorded in connection with Earn-Out   840,000  
Additional Goodwill Recorded as Result of Acquisition   0  
Reassignment of goodwill from change in reporting unit   (1,149,000)  
Goodwill, Ending Balance 13,691,000 13,691,000  
Services [Member]
      
Goodwill [Roll Forward]      
Goodwill, Beginning Balance   1,330,000  
Goodwill Recorded in connection with Earn-Out   0  
Additional Goodwill Recorded as Result of Acquisition   13,016,000  
Reassignment of goodwill from change in reporting unit   1,149,000  
Goodwill, Ending Balance $ 15,495,000 $ 15,495,000