Securities (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) security	Dec. 31, 2019 USD ($) security
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Accrued interest receivable	$ 2,400	$ 2,900
Securities available for sale and held to maturity pledged as collateral, fair value	291,900	$ 431,900
Amortized cost of callable debt securities	154,400
Fair value of callable debt securities	$ 152,900
Number of securities in a continuous unrealized loss position total | security	30	41
Unrealized losses of securities in a continuous unrealized loss position total	$ 2,569	$ 4,900
Minimum [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Callable debt securities, maturity period	3 years
Callable debt securities, call feature period	1 month
Maximum [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Callable debt securities, maturity period	16 years
Callable debt securities, call feature period	2 years
Individual name issuer trust preferred debt securities [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Number of securities in a continuous unrealized loss position total | security	5	5
Number of companies issuing securities in continuous unrealized loss position | security	4
Amortized cost of trust preferred securities of individual name issuers that are below investment grade	$ 4,000
Unrealized losses of trust preferred securities of individual name issuers that are below investment grade	(266)
Unrealized losses of securities in a continuous unrealized loss position total	$ 672	$ 745
Corporate bonds [Member]
Schedule of Available for Sale and Held to Maturity Securities [Line Items]
Number of securities in a continuous unrealized loss position total | security	3	3
Unrealized losses of securities in a continuous unrealized loss position total	$ 1,225	$ 958