Segment and Related Information (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 Segment	Dec. 31, 2012	Dec. 31, 2011
Segment and Related Information [Abstract]
Number of reportable segments	2
Segment Reporting Information [Line Items]
Interest income	$ 52,956	$ 57,806	$ 49,187
Interest expense	6,583	8,141	8,780
Noninterest income	10,827	11,410	9,244
Operating income before income taxes	21,801	22,299	16,481
Net Income	15,747	16,006	11,571
Depreciation and amortization	3,235	3,696	2,667
Total assets	1,307,512	1,283,687	1,304,706
Capital expenditures	865	699	1,734
Community Banking [Member]
Segment Reporting Information [Line Items]
Interest income	52,928	57,806	49,187
Interest expense	5,829	7,334	7,811
Noninterest income	6,649	7,255	5,379
Operating income before income taxes	20,142	21,051	16,610
Net Income	14,489	15,049	11,886
Depreciation and amortization	3,220	3,677	2,647
Total assets	1,305,540	1,282,796	1,303,816
Capital expenditures	861	699	1,731
Trust and Investment Services [Member]
Segment Reporting Information [Line Items]
Interest income	0	0	0
Interest expense	0	0	0
Noninterest income	4,158	4,136	3,836
Operating income before income taxes	2,605	2,380	2,330
Net Income	1,882	1,709	1,697
Depreciation and amortization	15	19	20
Total assets	0	0	0
Capital expenditures	4	0	3
Other [Member]
Segment Reporting Information [Line Items]
Interest income	28	6	55
Interest expense	754	813	1,024
Noninterest income	20	19	29
Operating income before income taxes	(946)	(1,132)	(2,459)
Net Income	(624)	(752)	(2,012)
Depreciation and amortization	0	0	0
Total assets	1,972	891	890
Capital expenditures	0	0	0
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Interest income	0	(6)	(55)
Interest expense	0	(6)	(55)
Noninterest income	0	0	0
Operating income before income taxes	0	0	0
Net Income	0	0	0
Depreciation and amortization	0	0	0
Total assets	0	0	0
Capital expenditures	$ 0	$ 0	$ 0