Loans and the Allowance for Loan Losses, Credit Quality (Details) - USD ($) $ in Thousands		Sep. 30, 2018		Dec. 31, 2017
Receivables [Abstract]
Gross loan receivables	[1]	$ 779,435		$ 738,540
Pass [Member]
Receivables [Abstract]
Gross loan receivables		745,926		706,579
OAEM [Member]
Receivables [Abstract]
Gross loan receivables		10,358		12,500
Substandard [Member]
Receivables [Abstract]
Gross loan receivables		23,151		19,461
Doubtful [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Mortgage Loans on Real Estate [Member]
Receivables [Abstract]
Gross loan receivables		530,053		492,720
Mortgage Loans on Real Estate [Member] | Pass [Member]
Receivables [Abstract]
Gross loan receivables		499,682		463,154
Mortgage Loans on Real Estate [Member] | OAEM [Member]
Receivables [Abstract]
Gross loan receivables		8,215		11,031
Mortgage Loans on Real Estate [Member] | Substandard [Member]
Receivables [Abstract]
Gross loan receivables		22,156		18,535
Mortgage Loans on Real Estate [Member] | Doubtful [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Mortgage Loans on Real Estate [Member] | Residential 1-4 Family [Member]
Receivables [Abstract]
Gross loan receivables		110,133		101,021
Mortgage Loans on Real Estate [Member] | Residential 1-4 Family [Member] | Pass [Member]
Receivables [Abstract]
Gross loan receivables		108,270		98,656
Mortgage Loans on Real Estate [Member] | Residential 1-4 Family [Member] | OAEM [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Mortgage Loans on Real Estate [Member] | Residential 1-4 Family [Member] | Substandard [Member]
Receivables [Abstract]
Gross loan receivables		1,863		2,365
Mortgage Loans on Real Estate [Member] | Residential 1-4 Family [Member] | Doubtful [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Mortgage Loans on Real Estate [Member] | Commercial [Member]
Receivables [Abstract]
Gross loan receivables		312,079		289,682
Mortgage Loans on Real Estate [Member] | Commercial [Member] | Pass [Member]
Receivables [Abstract]
Gross loan receivables		284,698		264,275
Mortgage Loans on Real Estate [Member] | Commercial [Member] | OAEM [Member]
Receivables [Abstract]
Gross loan receivables		8,144		10,526
Mortgage Loans on Real Estate [Member] | Commercial [Member] | Substandard [Member]
Receivables [Abstract]
Gross loan receivables		19,237		14,881
Mortgage Loans on Real Estate [Member] | Commercial [Member] | Doubtful [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Mortgage Loans on Real Estate [Member] | Construction [Member]
Receivables [Abstract]
Gross loan receivables		32,898		27,489
Mortgage Loans on Real Estate [Member] | Construction [Member] | Pass [Member]
Receivables [Abstract]
Gross loan receivables		32,409		26,694
Mortgage Loans on Real Estate [Member] | Construction [Member] | OAEM [Member]
Receivables [Abstract]
Gross loan receivables		71		74
Mortgage Loans on Real Estate [Member] | Construction [Member] | Substandard [Member]
Receivables [Abstract]
Gross loan receivables		418		721
Mortgage Loans on Real Estate [Member] | Construction [Member] | Doubtful [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Mortgage Loans on Real Estate [Member] | Second Mortgages [Member]
Receivables [Abstract]
Gross loan receivables		17,874		17,918
Mortgage Loans on Real Estate [Member] | Second Mortgages [Member] | Pass [Member]
Receivables [Abstract]
Gross loan receivables		17,535		17,211
Mortgage Loans on Real Estate [Member] | Second Mortgages [Member] | OAEM [Member]
Receivables [Abstract]
Gross loan receivables		0		431
Mortgage Loans on Real Estate [Member] | Second Mortgages [Member] | Substandard [Member]
Receivables [Abstract]
Gross loan receivables		339		276
Mortgage Loans on Real Estate [Member] | Second Mortgages [Member] | Doubtful [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Mortgage Loans on Real Estate [Member] | Equity Line of Credit [Member]
Receivables [Abstract]
Gross loan receivables		57,069		56,610
Mortgage Loans on Real Estate [Member] | Equity Line of Credit [Member] | Pass [Member]
Receivables [Abstract]
Gross loan receivables		56,770		56,318
Mortgage Loans on Real Estate [Member] | Equity Line of Credit [Member] | OAEM [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Mortgage Loans on Real Estate [Member] | Equity Line of Credit [Member] | Substandard [Member]
Receivables [Abstract]
Gross loan receivables		299		292
Mortgage Loans on Real Estate [Member] | Equity Line of Credit [Member] | Doubtful [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Commercial [Member]
Receivables [Abstract]
Gross loan receivables		67,772		60,398
Commercial [Member] | Commercial and Industrial Loans [Member]
Receivables [Abstract]
Gross loan receivables		67,772		60,398
Commercial [Member] | Commercial and Industrial Loans [Member] | Pass [Member]
Receivables [Abstract]
Gross loan receivables		65,170		58,091
Commercial [Member] | Commercial and Industrial Loans [Member] | OAEM [Member]
Receivables [Abstract]
Gross loan receivables		2,143		1,469
Commercial [Member] | Commercial and Industrial Loans [Member] | Substandard [Member]
Receivables [Abstract]
Gross loan receivables		459		838
Commercial [Member] | Commercial and Industrial Loans [Member] | Doubtful [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Consumer [Member]
Receivables [Abstract]
Gross loan receivables		170,898	[2]	174,225
Consumer [Member] | Consumer Automobile Loans [Member]
Receivables [Abstract]
Gross loan receivables		125,166		119,251
Consumer [Member] | Consumer Automobile Loans [Member] | Pass [Member]
Receivables [Abstract]
Gross loan receivables		124,765		119,211
Consumer [Member] | Consumer Automobile Loans [Member] | OAEM [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Consumer [Member] | Consumer Automobile Loans [Member] | Substandard [Member]
Receivables [Abstract]
Gross loan receivables		401		40
Consumer [Member] | Consumer Automobile Loans [Member] | Doubtful [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Consumer [Member] | Other Consumer Loans [Member]
Receivables [Abstract]
Gross loan receivables		45,732		54,974
Consumer [Member] | Other Consumer Loans [Member] | Pass [Member]
Receivables [Abstract]
Gross loan receivables		45,597		54,926
Consumer [Member] | Other Consumer Loans [Member] | OAEM [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Consumer [Member] | Other Consumer Loans [Member] | Substandard [Member]
Receivables [Abstract]
Gross loan receivables		135		48
Consumer [Member] | Other Consumer Loans [Member] | Doubtful [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Other [Member]
Receivables [Abstract]
Gross loan receivables		10,712		11,197
Other [Member] | Pass [Member]
Receivables [Abstract]
Gross loan receivables		10,712		11,197
Other [Member] | OAEM [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Other [Member] | Substandard [Member]
Receivables [Abstract]
Gross loan receivables		0		0
Other [Member] | Doubtful [Member]
Receivables [Abstract]
Gross loan receivables		$ 0		$ 0

[1] Net deferred loan fees totaled $849 thousand and $916 thousand at September 30, 2018 and December 31, 2017, respectively.

[2] The consumer segment includes consumer automobile loans.