INTEREST-BEARING DEPOSITS AND SECURITIES (Held-to-maturity Securities Debt Maturities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Due in one year or less, amortized cost	$ 4,152	$ 2,707
Due after one year through five years, amortized cost	14,539	14,420
Due after five years through ten years, amortized cost	11,395	9,726
Due after ten years through twenty years, amortized cost	56,248	46,741
Due after twenty years, amortized cost	2,292	1,844
Amortized cost	88,626	75,438
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due in one year or less, fair value	4,164	2,768
Due after one year through five years, fair value	15,332	15,150
Due after five years through ten years, fair value	11,823	10,254
Due after ten years through twenty years, fair value	61,334	49,936
Due after twenty years, fair value	2,523	1,999
Fair Value	$ 95,176	$ 80,107