Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Financial assets:
Available-for-sale securities	$ 267,093	$ 288,922	[1]
Level 1
Financial assets:
Cash and cash equivalents	61,518	40,995
Available-for-sale securities	3,072	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	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	264,021	285,771
Loans and loans held-for-sale, net	6,962	18,913
Accrued interest receivable	1,527	1,705
Federal Home Loan Bank stock	2,789	0
Financial liabilities:
Demand deposits, NOW, savings and money market accounts	939,904	911,457
Time deposits	535,322	560,008
Borrowed funds	67,433	66,690
Accrued interest payable	768	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	39	147
Financial liabilities:
Derivative liabilities		0
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	1,297,720	1,275,741
Accrued interest receivable	4,388	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	119	132
Financial liabilities:
Derivative liabilities	119	132
Level 3 | Forward Sales Commitments
Financial assets:
Derivative assets	0	0
Financial liabilities:
Derivative liabilities		0
Level 3 | Interest Rate Lock Commitments
Financial assets:
Derivative assets	178
Financial liabilities:
Derivative liabilities		23
Carrying Amount
Financial assets:
Cash and cash equivalents	61,518	40,995
Available-for-sale securities	267,093	288,922
Loans and loans held-for-sale, net	1,373,138	1,359,596
Accrued interest receivable	5,915	6,219
Federal Home Loan Bank stock	2,789	3,473
Financial liabilities:
Demand deposits, NOW, savings and money market accounts	992,166	961,154
Time deposits	533,308	557,269
Borrowed funds	90,039	89,214
Accrued interest payable	768	852
Carrying Amount | Interest Rate Swap Agreements
Financial assets:
Derivative assets	119	132
Financial liabilities:
Derivative liabilities	119	132
Carrying Amount | Forward Sales Commitments
Financial assets:
Derivative assets	39	147
Financial liabilities:
Derivative liabilities		0
Carrying Amount | Interest Rate Lock Commitments
Financial assets:
Derivative assets	178
Financial liabilities:
Derivative liabilities		23
Estimated Fair Value
Financial assets:
Cash and cash equivalents	61,518	40,995
Available-for-sale securities	267,093	288,922
Loans and loans held-for-sale, net	1,304,682	1,294,654
Accrued interest receivable	5,915	6,219
Federal Home Loan Bank stock	2,789	3,473
Financial liabilities:
Demand deposits, NOW, savings and money market accounts	939,904	911,457
Time deposits	535,322	560,008
Borrowed funds	67,433	66,690
Accrued interest payable	768	852
Estimated Fair Value | Interest Rate Swap Agreements
Financial assets:
Derivative assets	119	132
Financial liabilities:
Derivative liabilities	119	132
Estimated Fair Value | Forward Sales Commitments
Financial assets:
Derivative assets	39	147
Financial liabilities:
Derivative liabilities		0
Estimated Fair Value | Interest Rate Lock Commitments
Financial assets:
Derivative assets	178
Financial liabilities:
Derivative liabilities		$ 23

[1] Derived from audited consolidated financial statements