5. INVESTMENT SECURITIES (Detail) - (Table 3) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Asset-Backed Securities, Securitized Loans and Receivables [Member] | Investment Securities Less Than Twelve Months [Member]
Debt securities:
Investment Securities Fair Value	$ 83,494	$ 37,440
Investment Securities Unrealized Losses	(2,141)	(590)
Asset-Backed Securities, Securitized Loans and Receivables [Member] | Investment Securities More Than Twelve Months [Member]
Debt securities:
Investment Securities Fair Value	0	0
Investment Securities Unrealized Losses	0	0
Asset-Backed Securities, Securitized Loans and Receivables [Member] | Total [ Member]
Debt securities:
Investment Securities Fair Value	83,494	37,440
Investment Securities Unrealized Losses	(2,141)	(590)
US States and Political Subdivisions Debt Securities [Member] | Investment Securities Less Than Twelve Months [Member]
Debt securities:
Investment Securities Fair Value	4,282
Investment Securities Unrealized Losses	(151)
US States and Political Subdivisions Debt Securities [Member] | Investment Securities More Than Twelve Months [Member]
Debt securities:
Investment Securities Fair Value	0
Investment Securities Unrealized Losses	0
US States and Political Subdivisions Debt Securities [Member] | Total [ Member]
Debt securities:
Investment Securities Fair Value	4,282
Investment Securities Unrealized Losses	(151)
Equity Securities Industry [Member] | Investment Securities Less Than Twelve Months [Member]
Debt securities:
Investment Securities Fair Value	87,776	37,440
Investment Securities Unrealized Losses	(2,292)	(590)
Equity Securities Industry [Member] | Investment Securities More Than Twelve Months [Member]
Debt securities:
Investment Securities Fair Value	0	0
Investment Securities Unrealized Losses	0	0
Equity Securities Industry [Member] | Total [ Member]
Debt securities:
Investment Securities Fair Value	87,776	27,440
Investment Securities Unrealized Losses	$ (2,292)	$ (590)