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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 |

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