Loans, Impaired Financing Receivable Loan Type (Details) (USD $)	9 Months Ended
	Sep. 30, 2014		Dec. 31, 2013
Summary of certain impaired loan information [Abstract]
Non-accrual loans	$ 5,658,000	[1]	$ 7,192,000	[1]
Accruing loans past due 90 days or more	1,099,000	[2]	959,000	[2]
TDR loans	23,458,000		18,375,000
Decrease in accruing loans past due 90 days or more creased	140,000
Average 90 days or more past due loan balance	80,000		80,000
Agricultural [Member]
Summary of certain impaired loan information [Abstract]
Non-accrual loans	0	[1]	0	[1]
Accruing loans past due 90 days or more	0	[2]	0	[2]
TDR loans	1,772,000		120,000
Commercial and financial [Member]
Summary of certain impaired loan information [Abstract]
Non-accrual loans	1,170,000	[1]	1,462,000	[1]
Accruing loans past due 90 days or more	0	[2]	0	[2]
TDR loans	1,567,000		945,000
Real Estate: Construction, 1 to 4 family residential [Member]
Summary of certain impaired loan information [Abstract]
Non-accrual loans	0	[1]	0	[1]
Accruing loans past due 90 days or more	0	[2]	0	[2]
TDR loans	170,000		0
Real Estate: Construction, land development and commercial [Member]
Summary of certain impaired loan information [Abstract]
Non-accrual loans	132,000	[1]	1,319,000	[1]
Accruing loans past due 90 days or more	0	[2]	0	[2]
TDR loans	173,000		0
Real Estate: Mortgage, farmland [Member]
Summary of certain impaired loan information [Abstract]
Non-accrual loans	0	[1]	0	[1]
Accruing loans past due 90 days or more	0	[2]	0	[2]
TDR loans	2,267,000		284,000
Real Estate: Mortgage, 1 to 4 family first liens [Member]
Summary of certain impaired loan information [Abstract]
Non-accrual loans	2,025,000	[1]	2,209,000	[1]
Accruing loans past due 90 days or more	996,000	[2]	959,000	[2]
TDR loans	1,604,000		1,272,000
Real Estate: Mortgage, 1 to 4 family junior liens [Member]
Summary of certain impaired loan information [Abstract]
Non-accrual loans	389,000	[1]	178,000	[1]
Accruing loans past due 90 days or more	103,000	[2]	0	[2]
TDR loans	0		0
Real Estate: Mortgage, multi-family [Member]
Summary of certain impaired loan information [Abstract]
Non-accrual loans	58,000	[1]	456,000	[1]
Accruing loans past due 90 days or more	0	[2]	0	[2]
TDR loans	5,932,000		5,608,000
Real Estate: Mortgage, commercial [Member]
Summary of certain impaired loan information [Abstract]
Non-accrual loans	1,884,000	[1]	1,568,000	[1]
Accruing loans past due 90 days or more	0	[2]	0	[2]
TDR loans	9,973,000		10,146,000
Loans to individuals [Member]
Summary of certain impaired loan information [Abstract]
Non-accrual loans	0	[1]	0	[1]
Accruing loans past due 90 days or more	0	[2]	0	[2]
TDR loans	0		0
Troubled Debt Restructuring [Member]
Summary of certain impaired loan information [Abstract]
TDR Loans included within nonaccrual loans	$ 2,030,000		$ 2,720,000

[1] (1)There were $2.03 million and $2.72 million of TDR loans included within nonaccrual loans as of September 30, 2014 and December 31, 2013, respectively.

[2] (2)There were no TDR loans within accruing loans past due 90 days or more as of September 30, 2014 and December 31, 2013, respectively.