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Note 8 - Goodwill and Other Intangible Assets - Components of Other Intangible Assets, by Reporting Unit (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-lived intangible assets, net	$ 5,622
Other intangible assets	5,622	$ 7,069
Community Banking [Member]
Other intangible assets		7,069	$ 8,519
Core Deposits [Member]
Finite-lived intangible assets, gross	12,674
Accumulated amortization	(7,052)
Finite-lived intangible assets, net	5,622
Core Deposits [Member] | Highlands Bankshares, Inc. [Member]
Finite-lived intangible assets, gross	0	0	4,490
Core Deposits [Member] | Community Banking [Member]
Finite-lived intangible assets, gross		12,674	8,184
Accumulated amortization		(5,605)	(4,155)
Finite-lived intangible assets, net		7,069	8,519
Other Intangible Assets [Member]
Finite-lived intangible assets, gross	0
Accumulated amortization	0
Finite-lived intangible assets, net	$ 0
Other Intangible Assets [Member] | Community Banking [Member]
Finite-lived intangible assets, gross		0	0
Accumulated amortization		0	0
Finite-lived intangible assets, net		$ 0	$ 0

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

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-Publisher FASB
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