Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financial assets:
Available-for-sale securities	$ 259,143	$ 288,922	[1]
Level 1
Financial assets:
Cash and cash equivalents	36,131	40,995
Available-for-sale securities	3,033	3,151
Loans and loans held-for-sale, net	0	0
Accrued interest receivable	0	0
Federal Home Loan Bank stock	0	3,473
Financial liabilities:
Demand deposits, NOW, savings and money market accounts	0	0
Time deposits	0	0
Borrowed funds	0	0
Accrued interest payable	0	0
Level 1 | Interest Rate Swap Agreements
Financial assets:
Derivative assets	0	0
Financial liabilities:
Derivative liabilities	0	0
Level 1 | Forward Sales Commitments
Financial assets:
Derivative assets		0
Financial liabilities:
Derivative liabilities	0
Level 1 | Interest Rate Lock Commitments
Financial assets:
Derivative assets	0
Financial liabilities:
Derivative liabilities		0
Level 2
Financial assets:
Cash and cash equivalents	0	0
Available-for-sale securities	256,110	285,771
Loans and loans held-for-sale, net	15,696	18,913
Accrued interest receivable	1,600	1,705
Federal Home Loan Bank stock	3,778	0
Financial liabilities:
Demand deposits, NOW, savings and money market accounts	994,099	911,457
Time deposits	520,501	560,008
Borrowed funds	92,025	66,690
Accrued interest payable	734	852
Level 2 | Interest Rate Swap Agreements
Financial assets:
Derivative assets	0	0
Financial liabilities:
Derivative liabilities	0	0
Level 2 | Forward Sales Commitments
Financial assets:
Derivative assets	100	147
Level 2 | Interest Rate Lock Commitments
Financial assets:
Derivative assets	0
Financial liabilities:
Derivative liabilities		0
Level 3
Financial assets:
Cash and cash equivalents	0	0
Available-for-sale securities	0	0
Loans and loans held-for-sale, net	1,373,068	1,275,741
Accrued interest receivable	4,277	4,514
Federal Home Loan Bank stock	0	0
Financial liabilities:
Demand deposits, NOW, savings and money market accounts	0	0
Time deposits	0	0
Borrowed funds	0	0
Accrued interest payable	0	0
Level 3 | Interest Rate Swap Agreements
Financial assets:
Derivative assets	106	132
Financial liabilities:
Derivative liabilities	106	132
Level 3 | Forward Sales Commitments
Financial assets:
Derivative assets		0
Financial liabilities:
Derivative liabilities	0
Level 3 | Interest Rate Lock Commitments
Financial assets:
Derivative assets	231
Financial liabilities:
Derivative liabilities		23
Carrying Amount
Financial assets:
Cash and cash equivalents	36,131	40,995
Available-for-sale securities	259,143	288,922
Loans and loans held-for-sale, net	1,419,115	1,359,596
Accrued interest receivable	5,878	6,219
Federal Home Loan Bank stock	3,778	3,473
Financial liabilities:
Demand deposits, NOW, savings and money market accounts	994,099	961,154
Time deposits	515,482	557,269
Borrowed funds	108,838	89,214
Accrued interest payable	734	852
Carrying Amount | Interest Rate Swap Agreements
Financial assets:
Derivative assets	106	132
Financial liabilities:
Derivative liabilities	106	132
Carrying Amount | Forward Sales Commitments
Financial assets:
Derivative assets		147
Financial liabilities:
Derivative liabilities	100
Carrying Amount | Interest Rate Lock Commitments
Financial assets:
Derivative assets	231
Financial liabilities:
Derivative liabilities		23
Estimated Fair Value
Financial assets:
Cash and cash equivalents	36,131	40,995
Available-for-sale securities	259,143	288,922
Loans and loans held-for-sale, net	1,388,764	1,294,654
Accrued interest receivable	5,878	6,219
Federal Home Loan Bank stock	3,778	3,473
Financial liabilities:
Demand deposits, NOW, savings and money market accounts	994,099	911,457
Time deposits	520,501	560,008
Borrowed funds	92,025	66,690
Accrued interest payable	734	852
Estimated Fair Value | Interest Rate Swap Agreements
Financial assets:
Derivative assets	106	132
Financial liabilities:
Derivative liabilities	106	132
Estimated Fair Value | Forward Sales Commitments
Financial assets:
Derivative assets		147
Financial liabilities:
Derivative liabilities	100
Estimated Fair Value | Interest Rate Lock Commitments
Financial assets:
Derivative assets	231
Financial liabilities:
Derivative liabilities		$ 23

[1] Derived from audited consolidated financial statements