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INCOME TAXES - Summary of reconciliation of effect of applying federal statutory rate and effective income tax rate on income tax provision (Details 1)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Income Tax Disclosure [Abstract]      
Federal income tax at statutory rates (34.00%) (34.00%) (34.00%)
Foreign income tax (benefit)   6.00% (10.00%)
State income tax (2.00%) (3.00%) 8.00%
Other permanent differences 3.00% 4.00% 2.00%
Statutory tax rate change 4.00% 2.00% 3.00%
Compensation 9.00% 2.00% 7.00%
Change in valuation allowance 31.00% (49.00%) 55.00%
Effective tax rate 11.00% (72.00%) 31.00%