CHANGES IN AND RECLASSIFICATIONS FROM ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Unrealized gains and losses on available-for-sale securities, Beginning balance	$ 1,270	[1]
Other comprehensive income (loss) before reclassification	(950)	[1]
Amounts reclassified from accumulated other comprehensive income	(227)	[1]
Net other comprehensive income (loss)	(1,177)	[1]
Unrealized gains and losses on available-for-sale securities, Ending balance	$ 93	[1]

[1] All amounts are net of tax