OTHER RECEIVABLES, PREPAID EXPENSES AND ACCRUED INCOME (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
OTHER RECEIVABLES, PREPAID EXPENSES AND ACCRUED INCOME [Abstract]
Prepaid expenses	$ 3,219	$ 2,840
Other receivables	1,243	879
Accrued interest income	373	306
Other receivables, prepaid expenses and accrued income	$ 4,835	$ 4,025

The total of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer, and the aggregate carrying amount of current assets, as of the balance sheet date, not separately presented elsewhere in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer).

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Sum of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer.

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