Loans and the Allowance for Loan Losses, Activity In Period (Details) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
		Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) Period	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($) Period	Jun. 30, 2019 USD ($) qtr	Dec. 31, 2018 USD ($)
Allowance for loan losses by segment [Roll Forward]
Beginning Balance				$ 10,111	$ 9,448	$ 9,448
Charges-offs				(708)		(2,842)
Recoveries				341		644
Provision for loan losses		$ 787	$ 575	1,013	1,100	2,861
Ending balance		10,757		10,757		10,111
Individually evaluated for impairment							$ 852	$ 116
Collectively evaluated for impairment							9,905	9,995
Purchased credit-impaired loans							0	0
Ending balance		10,757		$ 10,111	9,448	$ 9,448	10,757	10,111
Loan Balances [Abstract]
Individually evaluated for impairment							14,624	16,180
Collectively evaluated for impairment							746,474	757,738
Purchased credit-impaired loans							80	91
Ending balance							$ 761,178	774,009
Changes in Accounting Methodology [Abstract]
Number of migration periods | Period				8		8
Number of quarters remains on each migration period | qtr							12
Commercial and Industrial [Member]
Allowance for loan losses by segment [Roll Forward]
Beginning Balance				$ 2,340	1,889	$ 1,889
Charges-offs				0		(81)
Recoveries				5		140
Provision for loan losses				(377)		392
Ending balance		1,968		1,968		2,340
Individually evaluated for impairment							$ 87	11
Collectively evaluated for impairment							1,881	2,329
Purchased credit-impaired loans							0	0
Ending balance		1,968		2,340	1,889	1,889	1,968	2,340
Loan Balances [Abstract]
Individually evaluated for impairment							434	298
Collectively evaluated for impairment							74,193	63,009
Purchased credit-impaired loans							80	91
Ending balance							74,707	63,398
Real Estate [Member]
Loan Balances [Abstract]
Purchased credit-impaired loans							80	91
Ending balance							525,749	532,824
Real Estate [Member] | Construction [Member]
Allowance for loan losses by segment [Roll Forward]
Beginning Balance				156	541	541
Charges-offs				0		0
Recoveries				0		0
Provision for loan losses				68		(385)
Ending balance		224		224		156
Individually evaluated for impairment							16	18
Collectively evaluated for impairment							208	138
Purchased credit-impaired loans							0	0
Ending balance		224		156	541	541	224	156
Loan Balances [Abstract]
Individually evaluated for impairment							90	509
Collectively evaluated for impairment							38,509	31,874
Purchased credit-impaired loans							0	0
Ending balance							38,599	32,383
Real Estate [Member] | Mortgage [Member]
Allowance for loan losses by segment [Roll Forward]
Beginning Balance	[1]			5,956	5,217	5,217
Charges-offs	[1]			(144)		(1,625)
Recoveries	[1]			90		158
Provision for loan losses	[1]			716		2,206
Ending balance	[1]	6,618		6,618		5,956
Individually evaluated for impairment	[1]						749	87
Collectively evaluated for impairment	[1]						5,869	5,869
Purchased credit-impaired loans	[1]						0	0
Ending balance	[1]	6,618		5,956	5,217	5,217	6,618	5,956
Loan Balances [Abstract]
Individually evaluated for impairment	[1]						14,100	15,373
Collectively evaluated for impairment	[1]						473,050	485,068
Purchased credit-impaired loans	[1]						0	0
Ending balance	[1]						487,150	500,441
Consumer [Member]
Allowance for loan losses by segment [Roll Forward]
Beginning Balance	[2]			1,354	1,644	1,644
Charges-offs	[2]			(321)		(769)
Recoveries	[2]			208		262
Provision for loan losses	[2]			290		217
Ending balance	[2]	1,531		1,531		1,354
Individually evaluated for impairment	[2]						0	0
Collectively evaluated for impairment	[2]						1,531	1,354
Purchased credit-impaired loans	[2]						0	0
Ending balance	[2]	1,531		1,354	1,644	1,354	1,531	1,354
Loan Balances [Abstract]
Individually evaluated for impairment	[2]						0	0
Collectively evaluated for impairment	[2]						151,577	169,138
Purchased credit-impaired loans	[2]						0	0
Ending balance	[2]						151,577	169,138
Other [Member]
Allowance for loan losses by segment [Roll Forward]
Beginning Balance				305	157	157
Charges-offs				(243)		(367)
Recoveries				38		84
Provision for loan losses				316		431
Ending balance		416		416		305
Individually evaluated for impairment							0	0
Collectively evaluated for impairment							416	305
Purchased credit-impaired loans							0	0
Ending balance		$ 416		$ 305	$ 157	$ 305	416	305
Loan Balances [Abstract]
Individually evaluated for impairment							0	0
Collectively evaluated for impairment							9,145	8,649
Purchased credit-impaired loans							0	0
Ending balance							$ 9,145	$ 8,649

[1] The real estate-mortgage segment includes residential 1 - 4 family, commercial real estate, second mortgages and equity lines of credit.

[2] The consumer segment includes consumer automobile loans.