Derivative Financial Instruments and Hedging Activities (Details) - Interest rate swap agreements $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021 USD ($) contract	Dec. 31, 2020 USD ($) contract
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash Collateral Pledged	$ 1,500	$ 1,500
Designated as hedging instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	70,000	80,000
Fair value	$ (219)	$ (1,026)
Weighted average pay rate	1.05%	1.19%
Weighted average receive rate	0.23%	0.89%
Weighted average maturity in years	2 years 21 days	2 years 2 months 12 days
Number of contracts | contract	4	5