Fair Value Measurements (Details) - USD ($)	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Fair Value Measurements [Abstract]
Percentage of selling costs reduced in sales comparison approach	10.00%
Consumer mortgage loans in the process of foreclosure value	$ 575,000
Available-for-Sale Securities [Abstract]
Fair/Book value	344,728,000	$ 366,542,000	$ 336,526,000
Recurring [Member]
Available-for-Sale Securities [Abstract]
Government Agency & Government-Sponsored Entities	41,513,000	78,109,000	13,361,000
US Treasury Notes	30,300,000
Mortgage Backed Securities	256,195,000	287,948,000	322,680,000
Corporate Securities	16,235,000
Other	485,000	485,000	485,000
Fair/Book value	344,728,000	366,542,000	336,526,000
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Available-for-Sale Securities [Abstract]
Government Agency & Government-Sponsored Entities	0	10,005,000	13,361,000
US Treasury Notes	30,300,000
Mortgage Backed Securities	0	0	39,566,000
Corporate Securities	0
Other	175,000	175,000	175,000
Fair/Book value	30,475,000	10,180,000	53,102,000
Recurring [Member] | Other Observable Inputs (Level 2) [Member]
Available-for-Sale Securities [Abstract]
Government Agency & Government-Sponsored Entities	41,513,000	68,104,000	0
US Treasury Notes	0
Mortgage Backed Securities	256,195,000	287,948,000	283,114,000
Corporate Securities	16,235,000
Other	310,000	310,000	310,000
Fair/Book value	314,253,000	356,362,000	283,424,000
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Available-for-Sale Securities [Abstract]
Government Agency & Government-Sponsored Entities	0	0	0
US Treasury Notes	0
Mortgage Backed Securities	0	0	0
Corporate Securities	0		0
Other	0	0	0
Fair/Book value	0	0	0
Nonrecurring [Member]
Impaired Loans [Abstract]
Commercial Real Estate		90,000	92,000
Residential 1st Mortgage	334,000	748,000	526,000
Home Equity Lines and Loans	126,000	759,000	763,000
Agricultural	308,000	346,000	363,000
Commercial	800,000	3,832,000	3,836,000
Consumer	5,000	6,000
Total Impaired Loans	1,573,000	5,781,000	5,580,000
Other Real Estate [Abstract]
Real Estate Construction	2,441,000	2,441,000	2,441,000
Agricultural Real Estate		858,000	858,000
Total Other Real Estate	2,441,000	3,299,000	3,299,000
Total Assets Measured at Fair Value On a Non-Recurring Basis	4,014,000	9,080,000	8,879,000
Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Impaired Loans [Abstract]
Commercial Real Estate		0	0
Residential 1st Mortgage	0	0	0
Home Equity Lines and Loans	0	0	0
Agricultural	0	0	0
Commercial	0	0	0
Total Impaired Loans	0	0	0
Other Real Estate [Abstract]
Real Estate Construction	0	0	0
Agricultural Real Estate		0	0
Total Other Real Estate	0	0	0
Total Assets Measured at Fair Value On a Non-Recurring Basis	0	0	0
Nonrecurring [Member] | Other Observable Inputs (Level 2) [Member]
Impaired Loans [Abstract]
Commercial Real Estate		0	0
Residential 1st Mortgage	0	0	0
Home Equity Lines and Loans	0	0	0
Agricultural	0	0	0
Commercial	0	0	0
Total Impaired Loans	0	0	0
Other Real Estate [Abstract]
Real Estate Construction	0	0	0
Agricultural Real Estate		0	0
Total Other Real Estate	0	0	0
Total Assets Measured at Fair Value On a Non-Recurring Basis	0	0	0
Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Impaired Loans [Abstract]
Commercial Real Estate		90,000	92,000
Residential 1st Mortgage	334,000	748,000	526,000
Home Equity Lines and Loans	126,000	759,000	763,000
Agricultural	308,000	346,000	363,000
Commercial	800,000	3,832,000	3,836,000
Consumer	5,000	6,000
Total Impaired Loans	1,573,000	5,781,000	5,580,000
Other Real Estate [Abstract]
Real Estate Construction	2,441,000	2,441,000	2,441,000
Agricultural Real Estate		858,000	858,000
Total Other Real Estate	2,441,000	3,299,000	3,299,000
Total Assets Measured at Fair Value On a Non-Recurring Basis	$ 4,014,000	$ 9,080,000	$ 8,879,000