Securities (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Securities available for sale [Abstract]
Amortized Cost	$ 340,172	$ 340,619
Unrealized Gains	10,116	7,317
Unrealized Losses	569	1,812
Estimated Fair Value	349,719	346,124
Restricted Stock [Abstract]
Par value of restricted stock out of outstanding capital required by FRB (in hundredths)	6.00%
Par value of restricted stock out of outstanding borrowings required by FHLB (in hundredths)	4.50%
Cost of restricted stock [Abstract]
Total restricted stock	5,064	4,889
Available for sale securities, continuous unrealized loss position [Abstract]
Estimated Fair Value	63,111	106,041
Unrealized Loss	569	1,812
Less than 12 Months, Estimated Fair Value	23,533	97,707
Less than 12 Months, Unrealized Loss	109	1,689
12 Months or More, Estimated Fair Value	39,578	8,334
12 Months or More, Unrealized Loss	460	123
Federal Agencies and GSEs [Member]
Securities available for sale [Abstract]
Amortized Cost	80,585	66,241
Unrealized Gains	233	126
Unrealized Losses	149	486
Estimated Fair Value	80,669	65,881
Available for sale securities, continuous unrealized loss position [Abstract]
Estimated Fair Value	33,328	41,586
Unrealized Loss	149	486
Less than 12 Months, Estimated Fair Value	13,801	41,586
Less than 12 Months, Unrealized Loss	32	486
12 Months or More, Estimated Fair Value	19,527	0
12 Months or More, Unrealized Loss	117	0
Mortgage-backed and CMOs [Member]
Securities available for sale [Abstract]
Amortized Cost	59,920	69,168
Unrealized Gains	1,323	1,085
Unrealized Losses	229	645
Estimated Fair Value	61,014	69,608
Available for sale securities, continuous unrealized loss position [Abstract]
Estimated Fair Value	12,015	23,916
Unrealized Loss	229	645
Less than 12 Months, Estimated Fair Value	1,907	19,042
Less than 12 Months, Unrealized Loss	1	577
12 Months or More, Estimated Fair Value	10,108	4,874
12 Months or More, Unrealized Loss	228	68
State and Municipal [Member]
Securities available for sale [Abstract]
Amortized Cost	189,003	193,251
Unrealized Gains	8,373	5,999
Unrealized Losses	133	517
Estimated Fair Value	197,243	198,733
Available for sale securities, continuous unrealized loss position [Abstract]
Estimated Fair Value	14,985	33,192
Unrealized Loss	133	517
Less than 12 Months, Estimated Fair Value	7,825	29,732
Less than 12 Months, Unrealized Loss	76	462
12 Months or More, Estimated Fair Value	7,160	3,460
12 Months or More, Unrealized Loss	57	55
Corporate [Member]
Securities available for sale [Abstract]
Amortized Cost	9,664	10,959
Unrealized Gains	69	4
Unrealized Losses	58	164
Estimated Fair Value	9,675	10,799
Available for sale securities, continuous unrealized loss position [Abstract]
Estimated Fair Value	2,783	7,347
Unrealized Loss	58	164
Less than 12 Months, Estimated Fair Value	0	7,347
Less than 12 Months, Unrealized Loss	0	164
12 Months or More, Estimated Fair Value	2,783	0
12 Months or More, Unrealized Loss	58	0
Equity Securities [Member]
Securities available for sale [Abstract]
Amortized Cost	1,000	1,000
Unrealized Gains	118	103
Unrealized Losses	0	0
Estimated Fair Value	1,118	1,103
FRB Stock [Member]
Cost of restricted stock [Abstract]
Total restricted stock	2,165	2,722
FHLB Stock [Member]
Cost of restricted stock [Abstract]
Total restricted stock	2,732	2,000
CBB Financial Corporation Stock [Member]
Cost of restricted stock [Abstract]
Total restricted stock	101	101
Danville Community Development Corporation Stock [Member]
Cost of restricted stock [Abstract]
Total restricted stock	$ 66	$ 66