Loans, Financing Receivables by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 614,095	$ 545,235	$ 515,002
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	573,896	512,366
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	18,467	16,270
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	21,732	16,599
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	136,095	120,751	110,644
Commercial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	125,562	112,751
Commercial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	6,842	3,255
Commercial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	3,691	4,745
Commercial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	292,316	256,955	235,296
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	268,707	240,808
Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	8,301	10,607
Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	15,308	5,540
Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Commercial Real Estate [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Agriculture [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	84,813	61,144	51,730
Agriculture [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	84,813	61,144
Agriculture [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Agriculture [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Agriculture [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Agriculture [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	43,375	50,511	52,809
Residential Mortgage [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	40,231	46,043
Residential Mortgage [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,847	997
Residential Mortgage [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,297	3,471
Residential Mortgage [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Residential Mortgage [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	12,110	5,963	10,444
Residential Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	11,593	5,386
Residential Construction [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	452	467
Residential Construction [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	65	110
Residential Construction [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Residential Construction [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	45,386	49,911	$ 54,079
Consumer [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	42,990	46,234
Consumer [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,025	944
Consumer [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	1,371	2,733
Consumer [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	0	0
Consumer [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 0	$ 0