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AVAILABLE FOR SALE SECURITIES (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Short-term - security bond Maturity year 2012  
Long-term - security bond Maturity year Perpetual  
Short-term - security bond $ 0 $ 409
Long-term - security bond $ 504 $ 473