Loans, Past Due (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Recorded investment of past due [Abstract]
Total Past Due	$ 8,696	$ 5,151
Current	562,955	548,954
Total Loans	571,651	554,105
90 Days or Greater and Accruing	826	836
Financing receivables on nonaccrual status [Abstract]
Total Past Due And Non-accrual	6,161	2,243
Current And Non-accrual	406	4,356
Financing receivable nonaccrual status	6,567	6,599
Financing receivables on accrual status [Abstract]
Total Past Due And Still Accruing	2,535	2,908
Current And Still Accruing	562,549	544,598
Total Financing Receivables And Still Accruing	$ 565,084	547,506
Minimum [Member]
Financing receivables on nonaccrual status [Abstract]
Period of past due after which loans considered as non accrual	90 days
30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	$ 1,614	1,479
Financing receivables on nonaccrual status [Abstract]
Total Past Due And Non-accrual	524	48
Financing receivables on accrual status [Abstract]
Total Past Due And Still Accruing	1,090	1,431
60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	1,115	822
Financing receivables on nonaccrual status [Abstract]
Total Past Due And Non-accrual	496	181
Financing receivables on accrual status [Abstract]
Total Past Due And Still Accruing	619	641
90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total Past Due	5,967	2,850
Financing receivables on nonaccrual status [Abstract]
Total Past Due And Non-accrual	5,141	2,014
Financing receivables on accrual status [Abstract]
Total Past Due And Still Accruing	826	836
Real Estate Loans [Member] | Mortgages [Member]
Recorded investment of past due [Abstract]
Total Past Due	1,522	1,223
Current	119,287	121,635
Total Loans	120,809	122,858
90 Days or Greater and Accruing	380	214
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	780	676
Real Estate Loans [Member] | Mortgages [Member] | 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	502	318
Real Estate Loans [Member] | Mortgages [Member] | 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	154	230
Real Estate Loans [Member] | Mortgages [Member] | 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total Past Due	866	675
Real Estate Loans [Member] | Home Equity [Member]
Recorded investment of past due [Abstract]
Total Past Due	615	801
Current	60,142	61,779
Total Loans	60,757	62,580
90 Days or Greater and Accruing	80	132
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	69	152
Real Estate Loans [Member] | Home Equity [Member] | 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	395	442
Real Estate Loans [Member] | Home Equity [Member] | 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	84	99
Real Estate Loans [Member] | Home Equity [Member] | 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total Past Due	136	260
Real Estate Loans [Member] | Commercial [Member]
Recorded investment of past due [Abstract]
Total Past Due	4,672	1,760
Current	189,055	189,185
Total Loans	193,727	190,945
90 Days or Greater and Accruing	104	310
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	4,547	5,010
Real Estate Loans [Member] | Commercial [Member] | 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	114	97
Real Estate Loans [Member] | Commercial [Member] | 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	524	231
Real Estate Loans [Member] | Commercial [Member] | 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total Past Due	4,034	1,432
Real Estate Loans [Member] | Agricultural [Member]
Recorded investment of past due [Abstract]
Total Past Due	209	0
Current	30,514	24,639
Total Loans	30,723	24,639
90 Days or Greater and Accruing	0	0
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	0	0
Real Estate Loans [Member] | Agricultural [Member] | 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	39	0
Real Estate Loans [Member] | Agricultural [Member] | 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	170	0
Real Estate Loans [Member] | Agricultural [Member] | 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total Past Due	0	0
Real Estate Loans [Member] | Construction [Member]
Recorded investment of past due [Abstract]
Total Past Due	0	0
Current	8,025	6,353
Total Loans	8,025	6,353
90 Days or Greater and Accruing	0	0
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	0	0
Real Estate Loans [Member] | Construction [Member] | 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	0	0
Real Estate Loans [Member] | Construction [Member] | 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	0	0
Real Estate Loans [Member] | Construction [Member] | 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total Past Due	0	0
Consumer [Member]
Recorded investment of past due [Abstract]
Total Past Due	80	130
Current	8,294	8,367
Total Loans	8,374	8,497
90 Days or Greater and Accruing	1	6
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	53	47
Consumer [Member] | 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	38	119
Consumer [Member] | 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	30	4
Consumer [Member] | 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total Past Due	12	7
Other Commercial Loans [Member]
Recorded investment of past due [Abstract]
Total Past Due	1,501	1,237
Current	50,619	46,214
Total Loans	52,120	47,451
90 Days or Greater and Accruing	261	174
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	1,118	714
Other Commercial Loans [Member] | 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	526	503
Other Commercial Loans [Member] | 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	56	258
Other Commercial Loans [Member] | 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total Past Due	919	476
Other Agricultural Loans [Member]
Recorded investment of past due [Abstract]
Total Past Due	97	0
Current	12,289	11,065
Total Loans	12,386	11,065
90 Days or Greater and Accruing	0	0
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	0	0
Other Agricultural Loans [Member] | 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	0	0
Other Agricultural Loans [Member] | 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	97	0
Other Agricultural Loans [Member] | 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total Past Due	0	0
State and Political Subdivision Loans [Member]
Recorded investment of past due [Abstract]
Total Past Due	0	0
Current	84,730	79,717
Total Loans	84,730	79,717
90 Days or Greater and Accruing	0	0
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	0	0
State and Political Subdivision Loans [Member] | 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	0	0
State and Political Subdivision Loans [Member] | 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total Past Due	0	0
State and Political Subdivision Loans [Member] | 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total Past Due	$ 0	$ 0