Fair Value Measurements, By Balance Sheet Grouping (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Financial Assets [Abstract]
Available-for-sale securities	$ 308,283	$ 317,301
Financial Liabilities [Abstract]
Consideration period for recognition of cash and due from banks	90 days
Consideration period for recognition of accrued interest receivable and payable	90 days
Carrying Amount [Member]
Financial Assets [Abstract]
Cash and due from banks	11,323	10,083
Interest bearing time deposits with other banks	5,712	2,480
Available-for-sale securities	308,283	317,301
Loans held for sale	753	278
Net loans	536,939	533,514
Bank owned life insurance	15,045	14,679
Regulatory stock	2,930	3,926
Accrued interest receivable	3,689	3,728
Financial Liabilities [Abstract]
Deposits	768,042	748,316
Borrowed funds	37,729	66,932
Accrued interest payable	753	895
Fair Value [Member]
Financial Assets [Abstract]
Cash and due from banks	11,323	10,083
Interest bearing time deposits with other banks	5,721	2,474
Available-for-sale securities	308,283	317,301
Loans held for sale	753	278
Net loans	552,458	547,405
Bank owned life insurance	15,045	14,679
Regulatory stock	2,930	3,926
Accrued interest receivable	3,689	3,728
Financial Liabilities [Abstract]
Deposits	768,624	750,172
Borrowed funds	34,363	63,500
Accrued interest payable	753	895
Level I [Member]
Financial Assets [Abstract]
Cash and due from banks	11,323	10,083
Interest bearing time deposits with other banks		0
Available-for-sale securities	1,763	1,325
Loans held for sale	753	278
Net loans	0	0
Bank owned life insurance	15,045	14,679
Regulatory stock	2,930	3,926
Accrued interest receivable	3,689	3,728
Financial Liabilities [Abstract]
Deposits	514,468	481,957
Borrowed funds	0	0
Accrued interest payable	753	895
Level II [Member]
Financial Assets [Abstract]
Cash and due from banks	0	0
Interest bearing time deposits with other banks		0
Available-for-sale securities	306,520	315,976
Loans held for sale		0
Net loans	0	0
Bank owned life insurance	0	0
Regulatory stock	0	0
Accrued interest receivable	0	0
Financial Liabilities [Abstract]
Deposits	0	0
Borrowed funds	34,363	63,500
Accrued interest payable	0	0
Level III [Member]
Financial Assets [Abstract]
Cash and due from banks	0	0
Interest bearing time deposits with other banks	5,721	2,474
Available-for-sale securities		0
Loans held for sale		0
Net loans	552,458	547,405
Bank owned life insurance	0	0
Regulatory stock	0	0
Accrued interest receivable	0	0
Financial Liabilities [Abstract]
Deposits	254,156	268,215
Borrowed funds	0	0
Accrued interest payable	$ 0	$ 0