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ACCRUED SEVERANCE AND SEVERANCE ASSETS Defined Contribution Plans (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Defined Benefit Plan Disclosure [Line Items]      
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Percent 0.00%    
Defined Contribution Plan, Cost Recognized $ 27    
Maximum percentage contribution to superannuation fund 9.00%    
Contributions to superannuation fund $ 148 $ 146 $ 87