SUMMARY OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES (Details 4)	12 Months Ended
	Dec. 31, 2012 item	Dec. 31, 2011 item
Long-Term Debt
Number of statutory business trusts dissolved		2
Number of statutory business trusts	9
Recent accounting standards
Minimum percentage of likelihood to determine that it is more likely than not	50.00%
Minimum
Information on Federal funds purchased
Federal funds maturity period	1 day
Maximum
Information on Federal funds purchased
Federal funds maturity period	6 months