Fair Value of Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Assets
Cash and due from banks	$ 31,735	$ 30,735
Investment securities, held to maturity	9,910
Loans held for sale	14,710	13,744
Interest receivable	7,749	7,716
Liabilities
Non-interest bearing deposits	213,700	209,200
Interest payable	931	560
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets
Cash and due from banks	31,735	30,735
Liabilities
Non-interest bearing deposits	213,700	209,200
Significant Other Observable Inputs (Level 2) [Member]
Assets
Stock in FHLB and FRB	14,184	13,333
Interest receivable	7,749	7,716
Liabilities
Interest-bearing deposits	1,039,509	1,092,184
Borrowings	285,761	352,891
Subordinated debentures	32,379	32,268
Interest payable	931	560
Significant Unobservable Inputs (Level 3) [Member]
Assets
Investment securities, held to maturity	9,910
Loans held for sale	14,710	13,744
Loans excluding loan level hedges, net	1,031,387	1,118,255
Carrying Amount [Member]
Assets
Cash and due from banks	31,735	30,735
Investment securities, held to maturity	9,910
Loans held for sale	14,710	13,744
Loans excluding loan level hedges, net	1,014,873	1,089,215
Stock in FHLB and FRB	14,184	13,333
Interest receivable	7,749	7,716
Liabilities
Non-interest bearing deposits	213,700	209,200
Interest-bearing deposits	1,083,556	1,084,953
Borrowings	282,837	345,764
Subordinated debentures	32,409	32,331
Interest payable	$ 931	$ 560