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COMMITMENTS AND CONTINGENCIES (Details) (USD $) | 12 Months Ended |  |  | 12 Months Ended | 3 Months Ended
--- | --- | --- | --- | --- | ---
Dec. 31, 2012 Installment | Dec. 31, 2011 | Sep. 28, 2010 | Aug. 31, 2005 | Dec. 31, 2012 Continuing Operations [Member] | Dec. 31, 2011 Continuing Operations [Member] | Dec. 31, 2010 Continuing Operations [Member] | Dec. 31, 2012 Discontinued Operations [Member] | Dec. 31, 2011 Discontinued Operations [Member] | Dec. 31, 2010 Discontinued Operations [Member] | Mar. 31, 2012 First Installment [Member] | Mar. 31, 2012 Second Installment [Member]
Earn-Out Amount [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Maximum earn out amount | $ 4,552,000 |  |  |  |  |  |  |  |  |  |  |
Earn out amount paid | 3,896,000 |  |  |  |  |  |  |  |  |  |  |
Earn out amount paid in cash | 2,574,000 |  |  |  |  |  |  |  |  |  |  |
Earn out amount paid in promissory note |  |  | 1,322,000 |  |  |  |  |  |  |  |  |
Number of monthly installments | 36 |  |  |  |  |  |  |  |  |  |  |
Periodic payment | 40,000 |  |  |  |  |  |  |  |  |  |  |
Offset amount representing indemnification obligation | 656,000 |  |  |  |  |  |  |  |  |  |  |
Maximum offset amount relating to merger agreement | 1,000,000 |  |  |  |  |  |  |  |  |  |  |
Offset amount relating to excise tax issue and refund request | 93,000 |  |  |  |  |  |  |  |  |  |  |
Anticipated offset amount relating to nonconforming waste | 563,000 |  |  |  |  |  |  |  |  |  |  |
Pension Liability [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Pension withdrawal liability | 301,000 |  |  |  |  |  |  |  |  |  |  |
Demand letter from central states teamsters pension fund for amending liability |  |  |  | 1,629,000 |  |  |  |  |  |  |  |
Demand notice from Central States Teamsters Pension Fund for per month payment | 22,000 |  |  |  |  |  |  |  |  |  |  |
Interest on pension liability (in hundredths) | 8.00% |  |  |  |  |  |  |  |  |  |  |
Period for payment of demand notice per month from Pension Fund Authority | 8 years |  |  |  |  |  |  |  |  |  |  |
Insurance [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Period of finite risk insurance policy (in years) | 25 years |  |  |  |  |  |  |  |  |  |  |
Maximum allowable coverage of insurance policy | 39,000,000 |  |  |  |  |  |  |  |  |  |  |
Final payment to insurer | 18,305,000 |  |  |  |  |  |  |  |  |  | 1,073,000 | 1,054,000
Number of installments for insurance policy | 14 |  |  |  |  |  |  |  |  |  |  |
Final payment to insurer deposited in sinking fund account | 14,472,000 |  |  |  |  |  |  |  |  |  |  |
Final payment to insurer representing terrorism premium | 2,883,000 |  |  |  |  |  |  |  |  |  |  |
Final payment to insurer representing fee payable | 950,000 |  |  |  |  |  |  |  |  |  |  |
Financial assurance coverage amount under insurance policy | 37,524,000 |  |  |  |  |  |  |  |  |  |  |
Sinking fund related to the insurance policy | 15,382,000 |  |  |  |  |  |  |  |  |  |  |
Interest earned on sinking fund | 911,000 |  |  |  |  |  |  |  |  |  |  |
Interest income on sinking fund during the period | 30,000 |  |  |  |  |  |  |  |  |  |  |
Insurer's obligation to entity on termination of contract (in hundredths) | 100.00% |  |  |  |  |  |  |  |  |  |  |
Contract termination election minimum period | 4 years |  |  |  |  |  |  |  |  |  |  |
Financial assurance coverage amount under second insurance policy | 7,800,000 |  |  |  |  |  |  |  |  |  |  |
Annual growth rate of financial assurance coverage amount under second insurance policy (in hundredths) | 1.50% |  |  |  |  |  |  |  |  |  |  |
Period of finite second insurance policy (in years) | 4 years |  |  |  |  |  |  |  |  |  |  |
Maximum financial assurance coverage amount under second insurance policy | 8,200,000 |  |  |  |  |  |  |  |  |  |  |
Total payment under second policy | 7,158,000 |  |  |  |  |  |  |  |  |  |  |
Amount of annual payment deposited in sinking fund under second insurance policy | 5,700,000 |  |  |  |  |  |  |  |  |  |  |
Initial payment representing premium under second insurance policy | 1,458,000 |  |  |  |  |  |  |  |  |  |  |
Sinking fund related to the second insurance policy | 5,890,000 |  |  |  |  |  |  |  |  |  |  |
Interest earned sinking fund | 190,000 |  |  |  |  |  |  |  |  |  |  |
Interest income | 3,000 |  |  |  |  |  |  |  |  |  |  |
Insurance annual fee | 46,000 | 46,000 |  |  |  |  |  |  |  |  |  |
Operating Leases [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
2013 | 883,000 |  |  |  |  |  |  |  |  |  |  |
2014 | 802,000 |  |  |  |  |  |  |  |  |  |  |
2015 | 733,000 |  |  |  |  |  |  |  |  |  |  |
2016 | 587,000 |  |  |  |  |  |  |  |  |  |  |
2017 | 529,000 |  |  |  |  |  |  |  |  |  |  |
beyond 2017 | 174,000 |  |  |  |  |  |  |  |  |  |  |
Total | 3,708,000 |  |  |  |  |  |  |  |  |  |  |
Total rent expenses |  |  |  |  | 1,569,000 | 1,289,000 | 1,025,000 | 42,000 | 239,000 | 269,000 |  |
Payments on non-cancelable operating leases |  |  |  |  | $ 972,000 | $ 762,000 | $ 653,000 | $ 5,000 | $ 135,000 | $ 216,000 |  |

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- Definition Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 122 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 16 -Subparagraph b(i) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 122 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 16 -Subparagraph b(i) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 122 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 16 -Subparagraph b(i) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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