Debt (Long-term Debt Outstanding by Due Date) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total FHLB fixed rate instruments	$ 71,584	$ 71,648
Lease obligations included in long-term debt	3,446	3,467
Total long-term debt	75,030	75,115
Due in April 2022 [Member]
Debt Instrument [Line Items]
Long-term debt outstanding	$ 70,000	$ 70,000
Federal Home Loan Bank, advances, branch of FHLB bank, interest rate	0.86343%	0.86343%
Federal Home Loan Bank, advances, branch of FHLB bank, due date	2022-04	2022-04
Due in August 2026 [Member]
Debt Instrument [Line Items]
Long-term debt outstanding	$ 1,544	$ 1,606
Federal Home Loan Bank, advances, branch of FHLB bank, interest rate	4.80%	4.80%
Federal Home Loan Bank, advances, branch of FHLB bank, due date	2026-08	2026-08
Due in February 2027 [Member]
Debt Instrument [Line Items]
Long-term debt outstanding	$ 40	$ 42
Federal Home Loan Bank, advances, branch of FHLB bank, interest rate	6.71%	6.71%
Federal Home Loan Bank, advances, branch of FHLB bank, due date	2027-02	2027-02

Federal home loan bank advances branch of FHLB bank due date year month.

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- Definition

Federal home loan bank advances lease obligations included in long term debt.

+ References

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- Definition

Federal home loan bank advances long term after fair value adjustment..

+ References

No definition available.

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- Definition

Federal Home Loan Bank advances long-term before fair value adjustment.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Discloses the single interest rate [if] applicable to the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

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- Definition

Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
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