Loans and the Allowance for Loan Losses, Impaired Loans (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2019	Dec. 31, 2018
Receivables [Abstract]
Unpaid Principal Balance	$ 16,501	$ 18,970
Recorded Investment, Without Valuation Allowance	10,364	15,249
Recorded Investment, With Valuation Allowance	4,260	931
Associated Allowance	852	116
Average Recorded Investment	15,360	18,268
Interest Income Recognized	113	549
Mortgage Loans on Real Estate [Member]
Receivables [Abstract]
Unpaid Principal Balance	15,885	18,548
Recorded Investment, Without Valuation Allowance	10,020	15,171
Recorded Investment, With Valuation Allowance	4,170	711
Associated Allowance	765	105
Average Recorded Investment	14,961	17,779
Interest Income Recognized	108	544
Mortgage Loans on Real Estate [Member] \| Residential 1-4 Family [Member]
Receivables [Abstract]
Unpaid Principal Balance	1,752	2,057
Recorded Investment, Without Valuation Allowance	1,457	1,686
Recorded Investment, With Valuation Allowance	89	239
Associated Allowance	44	51
Average Recorded Investment	1,754	2,073
Interest Income Recognized	0	66
Mortgage Loans on Real Estate [Member] \| Commercial [Member]
Receivables [Abstract]
Unpaid Principal Balance	13,728	15,254
Recorded Investment, Without Valuation Allowance	8,396	12,721
Recorded Investment, With Valuation Allowance	3,846	0
Associated Allowance	560	0
Average Recorded Investment	12,490	14,232
Interest Income Recognized	101	455
Mortgage Loans on Real Estate [Member] \| Construction [Member]
Receivables [Abstract]
Unpaid Principal Balance	91	509
Recorded Investment, Without Valuation Allowance	0	417
Recorded Investment, With Valuation Allowance	90	92
Associated Allowance	16	18
Average Recorded Investment	289	665
Interest Income Recognized	2	7
Mortgage Loans on Real Estate [Member] \| Second Mortgages [Member]
Receivables [Abstract]
Unpaid Principal Balance	307	496
Recorded Investment, Without Valuation Allowance	160	347
Recorded Investment, With Valuation Allowance	145	148
Associated Allowance	145	33
Average Recorded Investment	308	508
Interest Income Recognized	5	15
Mortgage Loans on Real Estate [Member] \| Equity Line of Credit [Member]
Receivables [Abstract]
Unpaid Principal Balance	7	232
Recorded Investment, Without Valuation Allowance	7	0
Recorded Investment, With Valuation Allowance	0	232
Associated Allowance	0	3
Average Recorded Investment	120	301
Interest Income Recognized	0	1
Commercial [Member] \| Commercial and Industrial Loans [Member]
Receivables [Abstract]
Unpaid Principal Balance	578	384
Recorded Investment, Without Valuation Allowance	344	78
Recorded Investment, With Valuation Allowance	90	220
Associated Allowance	87	11
Average Recorded Investment	399	446
Interest Income Recognized	5	5
Consumer [Member] \| Other Consumer Loans [Member]
Receivables [Abstract]
Unpaid Principal Balance	38	38
Recorded Investment, Without Valuation Allowance	0	0
Recorded Investment, With Valuation Allowance	0	0
Associated Allowance	0	0
Average Recorded Investment	0	43
Interest Income Recognized	$ 0	$ 0

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5258-111524

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-Section 50
-Paragraph 14A
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-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953550-111524

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