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FAIR VALUE MEASUREMENTS (Details) (USD $)
Jun. 30, 2013
Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Combined fair value of available-for-sale securities $ 100,000 $ 100,000
Gross unrealized losses 100,000 100,000
Recurring [Member]
   
Financial Assets Fair Value [Abstract]    
Investments held in rabbi trust 5,984,000 6,014,000
Marketable Securities 3,000 2,000
Total 5,987,000 6,016,000
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
   
Financial Assets Fair Value [Abstract]    
Investments held in rabbi trust 5,984,000 6,014,000
Marketable Securities 3,000 2,000
Total 5,987,000 6,016,000
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
   
Financial Assets Fair Value [Abstract]    
Investments held in rabbi trust 0 0
Marketable Securities 0 0
Total 0 0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
   
Financial Assets Fair Value [Abstract]    
Investments held in rabbi trust 0 0
Marketable Securities 0 0
Total $ 0 $ 0