Fair Value Measurements, Quantitative Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Residential 1st Mortgages [Member] | Sales Comparison Approach [Member]
Quantitative Information [Abstract]
Fair value	$ 341
Unobservable inputs	Adjustment for Difference Between Comparable Sales
Residential 1st Mortgages [Member] | Sales Comparison Approach [Member] | Minimum [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	2.00%
Residential 1st Mortgages [Member] | Sales Comparison Approach [Member] | Maximum [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	5.00%
Residential 1st Mortgages [Member] | Sales Comparison Approach [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	4.00%
Home Equity Lines and Loans [Member] | Sales Comparison Approach [Member]
Quantitative Information [Abstract]
Fair value	130
Unobservable inputs	Adjustment for Difference Between Comparable Sales
Home Equity Lines and Loans [Member] | Sales Comparison Approach [Member] | Minimum [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	1.00%
Home Equity Lines and Loans [Member] | Sales Comparison Approach [Member] | Maximum [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	3.00%
Home Equity Lines and Loans [Member] | Sales Comparison Approach [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	2.00%
Agricultural [Member] | Income Approach [Member]
Quantitative Information [Abstract]
Fair value	314
Unobservable inputs	Capitalization Rate
Agricultural [Member] | Income Approach [Member] | Minimum [Member]
Quantitative Information [Abstract]
Capitalization rate (in hundredths)	16.00%
Agricultural [Member] | Income Approach [Member] | Maximum [Member]
Quantitative Information [Abstract]
Capitalization rate (in hundredths)	16.00%
Agricultural [Member] | Income Approach [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Capitalization rate (in hundredths)	16.00%
Commercial [Member] | Income Approach [Member]
Quantitative Information [Abstract]
Fair value	3,674
Unobservable inputs	Capitalization Rate
Commercial [Member] | Income Approach [Member] | Minimum [Member]
Quantitative Information [Abstract]
Capitalization rate (in hundredths)	5.00%
Commercial [Member] | Income Approach [Member] | Maximum [Member]
Quantitative Information [Abstract]
Capitalization rate (in hundredths)	16.00%
Commercial [Member] | Income Approach [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Capitalization rate (in hundredths)	7.00%
Consumer [Member] | Sales Comparison Approach [Member]
Quantitative Information [Abstract]
Fair value	6
Unobservable inputs	Adjustment for Difference Between Comparable Sales
Consumer [Member] | Sales Comparison Approach [Member] | Minimum [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	1.00%
Consumer [Member] | Sales Comparison Approach [Member] | Maximum [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	2.00%
Consumer [Member] | Sales Comparison Approach [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	2.00%
Real Estate Construction [Member] | Sales Comparison Approach [Member]
Quantitative Information [Abstract]
Fair value	2,441
Unobservable inputs	Adjustment for Difference Between Comparable Sales
Real Estate Construction [Member] | Sales Comparison Approach [Member] | Minimum [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	10.00%
Real Estate Construction [Member] | Sales Comparison Approach [Member] | Maximum [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	10.00%
Real Estate Construction [Member] | Sales Comparison Approach [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	10.00%
Agricultural Real Estate [Member] | Sales Comparison Approach [Member]
Quantitative Information [Abstract]
Fair value	$ 858
Unobservable inputs	Adjustment for Difference Between Comparable Sales
Agricultural Real Estate [Member] | Sales Comparison Approach [Member] | Minimum [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	10.00%
Agricultural Real Estate [Member] | Sales Comparison Approach [Member] | Maximum [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	10.00%
Agricultural Real Estate [Member] | Sales Comparison Approach [Member] | Weighted Average [Member]
Quantitative Information [Abstract]
Adjustment for difference between comparable sales (in hundredths)	10.00%