Loans and Allowance for Loan Losses, Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Receivables [Abstract]
Unpaid Principal Balance	$ 11,595	$ 18,970
Recorded Investment, Without Valuation Allowance	6,411	15,249
Recorded Investment, With Valuation Allowance	2,033	931
Associated Allowance	481	116
Average Recorded Investment	8,866	18,268
Interest Income Recognized	149	549
Mortgage Loans on Real Estate [Member]
Receivables [Abstract]
Unpaid Principal Balance	11,211	18,548
Recorded Investment, Without Valuation Allowance	6,057	15,171
Recorded Investment, With Valuation Allowance	2,033	711
Associated Allowance	481	105
Average Recorded Investment	8,572	17,779
Interest Income Recognized	144	544
Mortgage Loans on Real Estate [Member] \| Residential 1-4 Family [Member]
Receivables [Abstract]
Unpaid Principal Balance	1,542	2,057
Recorded Investment, Without Valuation Allowance	1,519	1,686
Recorded Investment, With Valuation Allowance	89	239
Associated Allowance	39	51
Average Recorded Investment	1,416	2,073
Interest Income Recognized	11	66
Mortgage Loans on Real Estate [Member] \| Commercial [Member]
Receivables [Abstract]
Unpaid Principal Balance	9,333	15,254
Recorded Investment, Without Valuation Allowance	4,538	12,721
Recorded Investment, With Valuation Allowance	1,611	0
Associated Allowance	317	0
Average Recorded Investment	6,822	14,232
Interest Income Recognized	123	455
Mortgage Loans on Real Estate [Member] \| Construction [Member]
Receivables [Abstract]
Unpaid Principal Balance	89	509
Recorded Investment, Without Valuation Allowance	0	417
Recorded Investment, With Valuation Allowance	88	92
Associated Allowance	14	18
Average Recorded Investment	88	665
Interest Income Recognized	4	7
Mortgage Loans on Real Estate [Member] \| Second Mortgages [Member]
Receivables [Abstract]
Unpaid Principal Balance	247	496
Recorded Investment, Without Valuation Allowance	0	347
Recorded Investment, With Valuation Allowance	245	148
Associated Allowance	111	33
Average Recorded Investment	246	508
Interest Income Recognized	6	15
Mortgage Loans on Real Estate [Member] \| Equity Lines of Credit [Member]
Receivables [Abstract]
Unpaid Principal Balance		232
Recorded Investment, Without Valuation Allowance		0
Recorded Investment, With Valuation Allowance		232
Associated Allowance		3
Average Recorded Investment		301
Interest Income Recognized		1
Commercial [Member] \| Commercial and Industrial Loans [Member]
Receivables [Abstract]
Unpaid Principal Balance	362	384
Recorded Investment, Without Valuation Allowance	354	78
Recorded Investment, With Valuation Allowance	0	220
Associated Allowance	0	11
Average Recorded Investment	273	446
Interest Income Recognized	4	5
Consumer [Member] \| Other Consumer Loans [Member]
Receivables [Abstract]
Unpaid Principal Balance	22	38
Recorded Investment, Without Valuation Allowance	0	0
Recorded Investment, With Valuation Allowance	0	0
Associated Allowance	0	0
Average Recorded Investment	21	43
Interest Income Recognized	$ 1	$ 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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-Section 50
-Paragraph 14A
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-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953550-111524

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