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INCOME TAXES (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
INCOME TAXES    
Reduction in tax liability on uncertain tax positions because of expiration of statutes of limitations and a proposed IRS settlement $ 378,000  
Total accrued interest for uncertain income tax positions 899,000 830,000
Reconciliation of the beginning and ending amount of unrecognized tax benefits    
Balance at beginning of year 626,000 952,000
Adjustments for tax provisions of prior years (290,000) (211,000)
Expiration of statutes of limitations (88,000) (115,000)
Balance at end of year 248,000 626,000
Unrecognized tax benefits that would affect the effective tax rate if recognized $ 144,000 $ 232,000