STOCKHOLDERS' EQUITY (Schedule of Accumulated Other Comprehensive Income) (Details) (Tables) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	$ 45,259	$ 16,066	$ (2,318)
Other comprehensive income (loss) before reclassifications	(37,511)	29,951	21,845
Amounts reclassified from accumulated other comprehensive income (loss)	(246)	(758)	(3,461)
Net current period other comprehensive income (loss)	(37,757)	29,193	18,384
Balance, end of period	7,502	45,259	16,066
Investment Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	35,186	19,437	222
Other comprehensive income (loss) before reclassifications	(24,789)	16,507	22,676
Amounts reclassified from accumulated other comprehensive income (loss)	(246)	(758)	(3,461)
Net current period other comprehensive income (loss)	(25,035)	15,749	19,215
Balance, end of period	10,151	35,186	19,437
Defined Benefit Pension Plan [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(3,544)	(2,633)	(2,220)
Other comprehensive income (loss) before reclassifications	895	(911)	(413)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0
Net current period other comprehensive income (loss)	895	(911)	(413)
Balance, end of period	(2,649)	(3,544)	(2,633)
Deferred Tax Asset Valuation Allowance [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	13,617	(738)	(320)
Other comprehensive income (loss) before reclassifications	(13,617)	14,355	(418)
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0
Net current period other comprehensive income (loss)	(13,617)	14,355	(418)
Balance, end of period	$ 0	$ 13,617	$ (738)