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OTHER INCOME (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Component of Other Income, Nonoperating [Line Items]      
Other income (expense) $ 463 $ 650  
Discount amortization on prepaid royalty 774 916  
Interest income 352 401  
Building rental income 206 180  
Income (Loss) from Equity Method Investments 0 0  
Foreign Currency Transaction Gain (Loss), before Tax (1,697) (543)  
Nonoperating Income (Expense) 516 1,419  
Wheels India [Member]
      
Component of Other Income, Nonoperating [Line Items]      
Income (Loss) from Equity Method Investments $ 418 $ (185)  
Equity Method Investment, Ownership Percentage 34.23%   41.73%