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COMMITMENTS AND CONTINGENCIES (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Environmental Compliance and Remediation Liabilities    
Liability associated with environmental remediation costs $ 242 $ 352
Changes in the carrying amount of the total product warranty liability    
Balance, beginning of period 707 983
Reduction of warranty reserve (25) (133)
Warranty claims (7) (99)
Balance, end of period 675 751
Activity in the accounts receivable allowance from continuing operations    
Balance at beginning of year 453 438
Bad debt expense (38) 200
Write-offs (236) (123)
Balance at end of year 179 515
Liquidated Damages    
Liquidated damages $ 0  
Minimum
   
Warranty Liability    
Term of warranty 1 year  
Maximum
   
Warranty Liability    
Term of warranty 7 years