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MARKETABLE EQUITY SECURITIES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Changes in the entity's holdings of marketable securities
Opening Balance		$ 1,480	$ 4,576
Purchases			284	4,023
Proceeds from sale		(409)	(1,853)
(Loss) gain on sale		(70)	19
Unrealized loss		(5)	(1,546)
Realized loss		(993)
Ending Balance		3	1,480	4,576
Impairment of available for sale securities	$ 2,000	$ 1,993

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This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

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This item represents the difference between the gross amount of gains (losses) included in earnings for transfers of securities from the available-for-sale category into the trading category. Such net gain (loss) included in earnings represents the net unrealized gain (loss) which had been included in other comprehensive income and is associated with the securities transferred from the available-for-sale category to the trading category, excluding other than temporary impairments (OTTI) recognized in other comprehensive income.

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Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale which are intended to be held for less than one year or the normal operating cycle, whichever is longer.

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The amount by which the fair value of an investment in debt and equity securities categorized as Available-for-sale is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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The cash outflow from purchases of trading, available-for-sale securities and held-to-maturity securities.

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