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Goodwill and Other Intangible Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Identified intangible assets
Carrying Amount	$ 60,697,000	$ 60,697,000
Accumulated Amortization	60,697,000	60,697,000
Amortization expense	0	0	$ 0
Changes in carrying amount of goodwill	0	0
Core Deposits [Member]
Identified intangible assets
Carrying Amount	58,675,000	58,675,000
Accumulated Amortization	58,675,000	58,675,000
Contractual Rights [Member]
Identified intangible assets
Carrying Amount	2,022,000	2,022,000
Accumulated Amortization	$ 2,022,000	$ 2,022,000

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

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

+ References

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- Definition

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

+ References

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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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Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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