Borrowings (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total borrowings, gross	$ 71,017	$ 71,050
Unamortized discount on acquired borrowings	(3,602)	(3,664)
Total borrowings	$ 67,415	$ 67,386
Weighted average interest rate	2.56%	2.24%
FHLB Principal Reducing Credit Due July 24, 2023
Debt Instrument [Line Items]
Total borrowings, gross	$ 68	$ 79
Fixed rate	1.00%	1.00%
FHLB Principal Reducing Credit Due December 22, 2023
Debt Instrument [Line Items]
Total borrowings, gross	$ 942	$ 952
Fixed rate	1.25%	1.25%
FHLB Principal Reducing Credit Due June 26, 2028
Debt Instrument [Line Items]
Total borrowings, gross	$ 222	$ 225
Fixed rate	0.25%	0.25%
FHLB Principal Reducing Credit Due July 17, 2028
Debt Instrument [Line Items]
Total borrowings, gross	$ 42	$ 44
Fixed rate	0.00%	0.00%
FHLB Principal Reducing Credit Due August 18, 2028
Debt Instrument [Line Items]
Total borrowings, gross	$ 164	$ 166
Fixed rate	1.00%	1.00%
FHLB Principal Reducing Credit Due August 22, 2028
Debt Instrument [Line Items]
Total borrowings, gross	$ 164	$ 166
Fixed rate	1.00%	1.00%
FHLB Principal Reducing Credit Due December 20, 2028
Debt Instrument [Line Items]
Total borrowings, gross	$ 339	$ 342
Fixed rate	0.50%	0.50%
Trust Preferred Securities Due January 23, 2034
Debt Instrument [Line Items]
Total borrowings, gross	$ 20,620	$ 20,620
Weighted average interest rate	3.00%	2.83%
Trust Preferred Securities Due January 23, 2034 \| Three-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.70%	2.70%
Trust Preferred Securities Due June 15, 2036
Debt Instrument [Line Items]
Total borrowings, gross	$ 25,774	$ 25,774
Weighted average interest rate	2.22%	1.59%
Trust Preferred Securities Due June 15, 2036 \| Three-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.39%	1.39%
Trust Preferred Securities Due January 7, 2035
Debt Instrument [Line Items]
Total borrowings, gross	$ 10,310	$ 10,310
Weighted average interest rate	2.24%	2.12%
Trust Preferred Securities Due January 7, 2035 \| Three-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.00%	2.00%
Trust Preferred Securities Due September 20, 2034
Debt Instrument [Line Items]
Total borrowings, gross	$ 12,372	$ 12,372
Weighted average interest rate	3.08%	2.72%
Trust Preferred Securities Due September 20, 2034 \| Three-month LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.15%	2.15%

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt discount.

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Weighted average interest rate of debt outstanding.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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