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SUPPLEMENTARY BALANCE SHEET INFORMATION (Schedule of Long Term Trade Receivables) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
SUPPLEMENTARY BALANCE SHEET INFORMATION [Abstract]    
Long-term receivables in respect of capital leases (see c below) $ 19,498 $ 20,127
Other receivables 283 92
Long-term trade receivables, receivables in respect of capital leases and other receivables $ 19,781 $ 20,219