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GOODWILL AND OTHER INTANGIBLE ASSETS (Details) (USD $) | 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 | Jun. 30, 2013 | Dec. 31, 2013 Unit Permit | Dec. 31, 2012 | Dec. 31, 2013 Minimum [Member] | Dec. 31, 2013 Maximum [Member] | Dec. 31, 2013 Patents [Member] | Dec. 31, 2012 Patents [Member] | 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] | Dec. 31, 2012 Noncompete Agreements [Member] | Dec. 31, 2013 Customer Contracts [Member] | Dec. 31, 2012 Customer Contracts [Member] | Dec. 31, 2013 Customer Relationships [Member] | Dec. 31, 2012 Customer Relationships [Member] | Dec. 31, 2013 Treatment [Member] | Dec. 31, 2011 Treatment [Member] | Dec. 31, 2013 Services [Member] | Dec. 31, 2011 Services [Member] | Dec. 31, 2013 SEC reporting unit [Member]
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | Amortization for the one definite-lived permit capitalized in 2009 in connection with the authorization issued by the U.S. EPA to our DSSI facility to commercially store and dispose of radioactive PCBs. This permit is being amortized over a ten year period in accordance with its estimated useful life.

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