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INCOME TAXES (Reconciliation of the Theoretical and Actual Tax Expense)(Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
INCOME TAXES [Abstract]      
Net income before taxes $ 11,952 $ 25,618 $ 22,175
Theoretical tax expenses 2,988 6,148 5,544
Permanent differences, including difference between basis of measurement of income reported for tax purposes and basis of measurement of income for financial reporting purposes - net 46 36 117
Different tax rates of deferred taxes 1,901      
Deferred taxes on carryforward tax losses for which valuation allowance was provided    (3,731)   
Reinstate advances paid to tax authorities (747)      
Change in valuation allowance (4,080) (4,881) (5,609)
Other 16 (72) (52)
Total reconciling items (2,864) (8,648) (5,544)
Actual tax expense (benefit) $ 124 $ (2,500)