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Note 2 - Divestitures (Details Textual) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Sep. 16, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Deposits, Total		$ 2,710,221		$ 2,710,221		$ 2,729,391	[1]
Interest-Bearing Domestic Deposit, Demand		658,211		658,211		676,254
Interest-Bearing Domestic Deposit, Savings		587,413		587,413		$ 561,576
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		$ 1,658	$ 0	$ 1,658	$ 0
Disposal Group, Not Discontinued Operations [Member] | Emporia, Virginia Branch [Member] | Benchmark Community Bank [Member]
Disposal Group, Not Discontinued Operation, Deposit Premium, Percent	2.00%
Disposal Group, Proceeds From Real Estate and Property	$ 1,500
Deposits, Total	61,050
Noninterest-Bearing Domestic Deposit, Demand	18,380
Interest-Bearing Domestic Deposit, Demand	28,460
Interest-Bearing Domestic Deposit, Savings	11,520
Interest-Bearing Domestic Deposit, Time Deposits, Total	2,690
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 1,660
[1] Derived from audited financial statements

X

- Definition

The percent deposit premium for disposal group not included in discontinued operation.

+ References

No definition available.

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- Definition

The amount of cash inflow from real estate and property from disposal group.

+ References

No definition available.

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- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ 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 210.9-03.12)
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI https://asc.fasb.org/extlink&oid=126905981&loc=d3e2443-110228

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230

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- Definition

Amount of money in interest-bearing domestic accounts that entitle the depositor to withdraw funds at any time without prior notice, also known as demand deposits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 210
-Section S99
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- Definition

Amount of interest-bearing domestic savings deposit liabilities. Saving deposits bear interest and have no stated maturity.

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Amount of interest-bearing domestic time deposits. Time deposits bear interest for a fixed, stated period of time and include certificate of deposits and individual retirement accounts.

+ References

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-Publisher FASB
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Amount of money in noninterest-bearing domestic accounts that entitle the depositor to withdraw funds at any time without prior notice, also known as demand deposits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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