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ACCRUED EXPENSES AND OTHER LIABILITIES (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
ACCRUED EXPENSES AND OTHER LIABILITIES [Abstract]    
Employees and payroll accruals $ 6,854 $ 5,543
Phantom share-based payment award    3,684
Accrued expenses 4,655 4,643
Advances from customers 492 384
Taxes payable 2,053 4,250
Warranty provision 624 539
Derivatives    3,163
Consideration payable for U.S. Quartz acquisition    6,242
Other 636 585
Accrued expenses and other liabilities $ 15,314 $ 29,033