SECURITIES - Activity related to credit losses recognized in earnings (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Accounting Policies [Abstract]
Balance, beginning of period	$ 1,128,000	$ 1,128,000
Credit component on debt securities in which OTTI was not previously recognized
Balance, end of period	$ 1,128,000	$ 1,128,000