STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement
Balance at beginning of period	$ (17,037)	$ 6,185	$ (30,459)	$ 4,669
Net unrealized gains (losses) arising during the period	14,891	(24,763)	30,296	(20,012)
Less: reclassification adjustment for gains included in net income	(389)	(3,100)	(2,372)	(6,335)
Net unrealized gains (losses)	14,502	(27,863)	27,924	(26,347)
Balance at end of period	(2,535)	(21,678)	(2,535)	(21,678)
Investment Securities Available-for-Sale
Statement
Balance at beginning of period	(17,099)	6,149	(30,538)	4,643
Net unrealized gains (losses) arising during the period	14,895	(24,770)	30,317	(20,029)
Less: reclassification adjustment for gains included in net income	(389)	(3,100)	(2,372)	(6,335)
Net unrealized gains (losses)	14,506	(27,870)	27,945	(26,364)
Balance at end of period	(2,593)	(21,721)	(2,593)	(21,721)
Other Investment
Statement
Balance at beginning of period	62	36	79	26
Net unrealized gains (losses) arising during the period	(4)	7	(21)	17
Net unrealized gains (losses)	(4)	7	(21)	17
Balance at end of period	$ 58	$ 43	$ 58	$ 43