Securities (Narrative) (Details)	3 Months Ended
	Mar. 31, 2021 USD ($) item	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)
Schedule of Investments [Line Items]
Available-for-sale securities, continuous unrealized loss position, fair value	$ 130,673,000		$ 65,322,000
Number of securities designated as available for sale securities having unrealized loss | item	80
Unrealized loss of available for sale securities	$ 3,467,000		501,000
Securities pledged to secure deposits and for other purposes required by law	5,900,000		6,000,000.0
Proceeds from the sales of securities	0	$ 5,400,000
Realized gains on sale of securities		$ 53,000
Restricted securities, at cost	2,653,000		3,010,000	[1]
Municipal bonds [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, continuous unrealized loss position, fair value	$ 47,602,000		21,501,000
Number of securities designated as available for sale securities having unrealized loss | item	34
Unrealized loss of available for sale securities	$ 1,647,000		121,000
Mortgage-backed securities/CMOs [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, continuous unrealized loss position, fair value	$ 52,510,000		24,523,000
Number of securities designated as available for sale securities having unrealized loss | item	29
Unrealized loss of available for sale securities	$ 910,000		182,000
U.S. Government agencies [Member]
Schedule of Investments [Line Items]
Available-for-sale securities, continuous unrealized loss position, fair value	$ 30,561,000		19,298,000
Number of securities designated as available for sale securities having unrealized loss | item	17
Unrealized loss of available for sale securities	$ 910,000		$ 198,000

[1] Derived from audited Consolidated Financial Statements