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Fair Value Measurements - Nonrecurring (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Assets and liabilities measured at fair value
Valuation allowance	$ 11,600,000
Carrying value of other real estate owned	2,374,000	$ 2,356,000	$ 2,163,000	$ 2,474,000
OREO Valuation allowance	1,179,000	1,179,000	$ 1,649,000	$ 1,643,000
Impaired Loans [Member]
Assets and liabilities measured at fair value
Valuation allowance		18,500,000
Impaired Loans [Member] | Reported Value Measurement [Member]
Assets and liabilities measured at fair value
Increase (decrease) of specific allocations within the provision for loan losses		2,700,000
Fair Value, Measurements, Nonrecurring [Member]
Assets and liabilities measured at fair value
Total	24,364,000	15,494,000
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member]
Assets and liabilities measured at fair value
Total	21,990,000	13,138,000
Valuation allowance	11,600,000	5,400,000
Increase (decrease) of specific allocations within the provision for loan losses	6,200,000
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Reported Value Measurement [Member]
Assets and liabilities measured at fair value
Total	33,600,000
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned [Member]
Assets and liabilities measured at fair value
Total	2,374,000	2,356,000
Carrying value of other real estate owned	2,400,000	2,400,000
Outstanding balance	3,700,000	3,700,000
OREO Valuation allowance	1,200,000	1,200,000
OREO participations	131,000	131,000
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Assets and liabilities measured at fair value
Total	24,364,000	15,494,000
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member]
Assets and liabilities measured at fair value
Total	21,990,000	13,138,000
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Other Real Estate Owned [Member]
Assets and liabilities measured at fair value
Total	$ 2,374,000	$ 2,356,000

X

- Definition

Represents the amount of increase (decrease) in specific allocations within the provision for loan losses for impaired financing receivables.

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

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