Borrowings - Long-term Borrowings (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Balance		$ 20,994
First Subordinated Term Loan Note [Member]
Debt Instrument [Line Items]
Balance		125
Interest Rate		1.62%
Second Subordinated Term Loan Note [Member]
Debt Instrument [Line Items]
Balance		250
Interest Rate		1.62%
Junior Subordinated Debt Owed to Unconsolidated Subsidiary Trust [Member]
Debt Instrument [Line Items]
Balance		$ 20,619
Interest Rate		3.39%