Fair Value of Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Fair value measurements of assets and liabilities recognized on a recurring basis
Cash and due from banks	$ 41,562	$ 20,447
Investment securities, held to maturity	6,100	7,100
Loans held for sale	18,163	14,090
Loans, net	1,136,480	964,311
Stock in FHLB and FRB	13,333	12,390
Interest receivable	8,248	6,671
Liabilities
Non-interest bearing deposits	211,935	130,673
Interest-bearing deposits	1,095,036	879,192
Borrowings	333,150	370,111
Subordinated debentures	32,282	30,676
Interest payable	579	596
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value measurements of assets and liabilities recognized on a recurring basis
Cash and due from banks	41,562	20,447
Investment securities, held to maturity
Loans held for sale
Loans, net
Stock in FHLB and FRB
Interest receivable
Liabilities
Non-interest bearing deposits	211,935	130,673
Interest-bearing deposits
Borrowings
Subordinated debentures
Interest payable
Significant Other Observable Inputs (Level 2) [Member]
Fair value measurements of assets and liabilities recognized on a recurring basis
Cash and due from banks
Investment securities, held to maturity	6,100	7,134
Loans held for sale
Loans, net
Stock in FHLB and FRB	13,333	12,390
Interest receivable	8,248	6,671
Liabilities
Non-interest bearing deposits
Interest-bearing deposits	1,108,316	874,160
Borrowings	344,884	398,789
Subordinated debentures	32,140	30,083
Interest payable	579	596
Level 3 [Member]
Fair value measurements of assets and liabilities recognized on a recurring basis
Cash and due from banks
Investment securities, held to maturity
Loans held for sale	18,163	14,090
Loans, net	1,166,649	979,401
Stock in FHLB and FRB
Interest receivable
Liabilities
Non-interest bearing deposits
Interest-bearing deposits
Borrowings
Subordinated debentures
Interest payable

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For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

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Amount of subordinated debt obligations (also known as subordinated loan, subordinated bond, subordinated debenture or junior debt) which has a priority ranking after other debts in a dissolution, measured at fair value.

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Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock.

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Total amount of interest-bearing domestic deposit liabilities, which may include brokered, retail, demand, checking, notice of withdrawal, money market and other interest-bearing deposits.

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Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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The aggregate carrying amount of loans receivable that will be sold to other entities. Includes mortgage and all other loans (collectively, loans) not classified as held for investment. Such loans are stated at the lower of cost or market, or elected fair value. Mortgage loans exclude mortgage-backed securities which are considered a debt security (other loan).

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