Annual report pursuant to section 13 and 15(d)

COMMITMENTS AND CONTINGENCIES (Details)

v2.4.0.8
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