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GOODWILL AND OTHER INTANGIBLE ASSETS (Details) (USD $)
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3 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | ||||||||||||||||||
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Dec. 31, 2013
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Jun. 30, 2013
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Dec. 31, 2013
Unit
Permit
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Dec. 31, 2012
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Dec. 31, 2013
Minimum [Member]
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Dec. 31, 2013
Maximum [Member]
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Dec. 31, 2013
Patents [Member]
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Dec. 31, 2012
Patents [Member]
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Dec. 31, 2013
Patents [Member]
Minimum [Member]
|
Dec. 31, 2013
Patents [Member]
Maximum [Member]
|
Dec. 31, 2013
Software [Member]
|
Dec. 31, 2012
Software [Member]
|
Dec. 31, 2013
Noncompete Agreements [Member]
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Dec. 31, 2012
Noncompete Agreements [Member]
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Dec. 31, 2013
Customer Contracts [Member]
|
Dec. 31, 2012
Customer Contracts [Member]
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Dec. 31, 2013
Customer Relationships [Member]
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Dec. 31, 2012
Customer Relationships [Member]
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Dec. 31, 2013
Treatment [Member]
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Dec. 31, 2011
Treatment [Member]
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Dec. 31, 2013
Services [Member]
|
Dec. 31, 2011
Services [Member]
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Dec. 31, 2013
SEC reporting unit [Member]
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| Goodwill [Roll Forward] | |||||||||||||||||||||||||||
| Goodwill, Beginning Balance | $ 29,186,000 | $ 29,186,000 | $ 13,691,000 | $ 13,691,000 | $ 15,495,000 | $ 15,495,000 | |||||||||||||||||||||
| Goodwill impairment | 26,707,000 | 1,149,000 | (27,856,000) | (13,691,000) | (14,165,000) | (13,016,000) | |||||||||||||||||||||
| Goodwill, Ending Balance | 1,330,000 | 1,330,000 | 29,186,000 | 0 | 13,691,000 | 1,330,000 | 15,495,000 | ||||||||||||||||||||
| Finite-Lived Intangible Assets [Line Items] | |||||||||||||||||||||||||||
| Useful Lives | 8 years | 18 years | 3 years | 1 year 2 months 12 days | 0 years 6 months | 12 years | |||||||||||||||||||||
| Gross Carrying Amount | 5,318,000 | 5,318,000 | 5,258,000 | 514,000 | 453,000 | 379,000 | 380,000 | 265,000 | 265,000 | 790,000 | 790,000 | 3,370,000 | 3,370,000 | ||||||||||||||
| Accumulated Amortization | (2,338,000) | (2,338,000) | (1,648,000) | (155,000) | (105,000) | (258,000) | (145,000) | (174,000) | (62,000) | (790,000) | (790,000) | (961,000) | (546,000) | ||||||||||||||
| Net Carrying Amount | 2,980,000 | 2,980,000 | 3,610,000 | 359,000 | 348,000 | 121,000 | 235,000 | 91,000 | 203,000 | 0 | 0 | 2,409,000 | 2,824,000 | ||||||||||||||
| Volatility rate (in hundredths) | 15.00% | 21.00% | 35.00% | ||||||||||||||||||||||||
| Projected growth rate | 3.00% | 3.00% | 4.00% | ||||||||||||||||||||||||
| Amortization period of definite-lived intangible asset | 5 years | ||||||||||||||||||||||||||
| Number of definite lived permit | 1 | ||||||||||||||||||||||||||
| Number of reporting units on which goodwill impairment test was performed | 3 | ||||||||||||||||||||||||||
| Amortization period of permit (in years) | 10 years | ||||||||||||||||||||||||||
| Changes in the carrying amount of permits [Abstract] | |||||||||||||||||||||||||||
| Beginning balance | 16,799,000 | 16,854,000 | |||||||||||||||||||||||||
| PCB permit amortized | (55,000) | [1] | (55,000) | [1] | |||||||||||||||||||||||
| Ending balance | 16,744,000 | 16,744,000 | 16,799,000 | ||||||||||||||||||||||||
| Definite lived intangible assets future amortization expense [Abstract] | |||||||||||||||||||||||||||
| 2014 | 527,000 | 527,000 | |||||||||||||||||||||||||
| 2015 | 563,000 | 563,000 | |||||||||||||||||||||||||
| 2016 | 398,000 | 398,000 | |||||||||||||||||||||||||
| 2017 | 385,000 | 385,000 | |||||||||||||||||||||||||
| 2018 | 355,000 | 355,000 | |||||||||||||||||||||||||
| Total | 2,228,000 | 2,228,000 | |||||||||||||||||||||||||
| Amortization expense of intangible assets | $ 745,000 | $ 675,000 | |||||||||||||||||||||||||
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