Fair Value Measurements, Balance Sheet Grouping (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Level I [Member]
Financial assets:
Cash and cash equivalents	$ 58,476	$ 54,415
Securities	0	0
Loans held for sale	0	0
Net portfolio loans	0	0
Bank owned life insurance	0	0
Accrued interest receivable	0	0
Mortgage interest rate locks		0
Interest rate swaps	0	0
Mortgage banking hedge instruments	0
Financial liabilities:
Deposits	0	0
Securities sold under agreements to repurchase	0	0
Short-term borrowings	0	0
FHLB borrowings	0	0
Trust preferred capital notes	0	0
Accrued interest payable	0	0
Mortgage interest rate locks	0
Interest rate swaps	0	0
Mortgage banking hedge instruments		0
Level II [Member]
Financial assets:
Cash and cash equivalents	0	0
Securities	320,132	319,457
Loans held for sale	65,322	82,114
Net portfolio loans	7,494	1,178
Bank owned life insurance	16,726	16,484
Accrued interest receivable	4,038	3,974
Mortgage interest rate locks		35
Interest rate swaps	159	80
Mortgage banking hedge instruments	251
Financial liabilities:
Deposits	964,296	984,682
Securities sold under agreements to repurchase	35,783	33,975
Short-term borrowings	5,688	11,873
FHLB borrowings	85,929	78,912
Trust preferred capital notes	5,211	5,221
Accrued interest payable	544	654
Mortgage interest rate locks	73
Interest rate swaps	312	541
Mortgage banking hedge instruments		39
Level III [Member]
Financial assets:
Cash and cash equivalents	0	0
Securities	0	0
Loans held for sale	0	0
Net portfolio loans	699,564	715,180
Bank owned life insurance	0	0
Accrued interest receivable	0	0
Mortgage interest rate locks		0
Interest rate swaps	0	0
Mortgage banking hedge instruments	0
Financial liabilities:
Deposits	0	0
Securities sold under agreements to repurchase	0	0
Short-term borrowings	0	0
FHLB borrowings	0	0
Trust preferred capital notes	0	0
Accrued interest payable	0	0
Mortgage interest rate locks	0
Interest rate swaps	0	0
Mortgage banking hedge instruments		0
Carrying Amount [Member]
Financial assets:
Cash and cash equivalents	58,476	54,415
Securities	320,132	319,457
Loans held for sale	65,322	82,114
Net portfolio loans	693,383	695,166
Bank owned life insurance	16,726	16,484
Accrued interest receivable	4,038	3,974
Mortgage interest rate locks		35
Interest rate swaps	159	80
Mortgage banking hedge instruments	251
Financial liabilities:
Deposits	961,874	981,900
Securities sold under agreements to repurchase	35,783	33,975
Short-term borrowings	5,688	11,873
FHLB borrowings	85,000	72,912
Trust preferred capital notes	5,155	5,155
Accrued interest payable	544	654
Mortgage interest rate locks	73
Interest rate swaps	312	541
Mortgage banking hedge instruments		39
Fair Value [Member]
Financial assets:
Cash and cash equivalents	58,476	54,415
Securities	320,132	319,457
Loans held for sale	65,322	82,114
Net portfolio loans	707,058	716,358
Bank owned life insurance	16,726	16,484
Accrued interest receivable	4,038	3,974
Mortgage interest rate locks		35
Interest rate swaps	159	80
Mortgage banking hedge instruments	251
Financial liabilities:
Deposits	964,296	984,682
Securities sold under agreements to repurchase	35,783	33,975
Short-term borrowings	5,688	11,873
FHLB borrowings	85,929	78,912
Trust preferred capital notes	5,211	5,221
Accrued interest payable	544	654
Mortgage interest rate locks	73
Interest rate swaps	312	541
Mortgage banking hedge instruments		$ 39