FAIR VALUE (Quantitative Inputs and Assumptions Used in Determining the Fair Value of Items Categorized in Level 3) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, fair value	$ 6,086	$ 5,211
Investment securities, trading	3,672	5,365
Collateralized Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, fair value	5,657	5,002
Loss severity rate (in hundredths)	25.00%
Trading Account Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities, trading	$ 3,672
Prepayment Year One [Member] | Collateralized Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Constant prepayment rate (in hundredths)	30.00%
Prepayment Year Two [Member] | Collateralized Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Constant prepayment rate (in hundredths)	25.00%
Prepayment Thereafter [Member] | Collateralized Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Constant prepayment rate (in hundredths)	25.00%
Minimum [Member] | Collateralized Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Constant default rate (in hundredths)	0.00%
Reinvestment price on collateral (in hundredths)	99.75%
Discount rates (in hundredths)	13.50%
Minimum [Member] | Trading Account Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rates (in hundredths)	5.00%
Maximum [Member] | Collateralized Debt Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Constant default rate (in hundredths)	2.00%
Reinvestment price on collateral (in hundredths)	100.00%
Discount rates (in hundredths)	20.00%
Maximum [Member] | Trading Account Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rates (in hundredths)	15.00%