Allowance for Loan Losses and Credit Quality - Narrative (Details) $ in Thousands			3 Months Ended
	Mar. 31, 2022 USD ($) loan	Dec. 31, 2021 loan	Mar. 31, 2022 USD ($) loan Rate	Mar. 31, 2021 loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Individually evaluated for impairment, aggregate balances (greater than) | $	$ 500		$ 500
Appropriate time frame on which to base historical losses for each portfolio segment			5 years
Portfolios decreased percent | Rate			0.05%
New TDR loans			0	0
Number of TDR loans modified within the previous twelve months that had subsequently defaulted			0	0
Number of payment deferral modifications	35	35
Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of payment deferral modifications			4
Outstanding balance of loans receiving payment deferrals subject to modification terms | $	$ 545		$ 545
Outstanding accrued interest balance of loans receiving payment deferrals, subject to modification terms | $	$ 10		$ 10