Securities (Narrative) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($) security	Dec. 31, 2019 USD ($) security
Schedule of Available for Sale and Held to Maturty Securities [Line Items]
Accrued interest receivable	$ 2,700	$ 2,900
Fair value of available for sale and held to maturity securities pledged as collateral	353,100	$ 431,900
Amortized cost of callable debt securities	178,400
Fair value of callable debt securities	$ 176,000
Number of securities in a continuous unrealized loss position total | security	10	41
Unrealized losses of securities in a continuous unrealized loss position total	$ (3,760)	$ (4,900)
Individual name issuer trust preferred debt securities
Schedule of Available for Sale and Held to Maturty Securities [Line Items]
Number of securities in a continuous unrealized loss position total | security	5	5
Securities in unrealized loss position, number of companies issuing securities | security	4
Amortized cost of trust preferred securities of individual name issuers that are below investment grade	$ 2,000
Unrealized losses of trust preferred securities of individual name issuers that are below investment grade	254
Unrealized losses of securities in a continuous unrealized loss position total	$ (1,603)	$ (745)
Corporate bonds [Member]
Schedule of Available for Sale and Held to Maturty 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	$ (2,124)	$ (958)
Minimum [Member]
Schedule of Available for Sale and Held to Maturty Securities [Line Items]
Maturity period of callable debt securities	3 years
Call features of callable debt securities	1 month
Maximum [Member]
Schedule of Available for Sale and Held to Maturty Securities [Line Items]
Maturity period of callable debt securities	17 years
Call features of callable debt securities	1 year
Below investment grade [Member] | Individual name issuer trust preferred debt securities
Schedule of Available for Sale and Held to Maturty Securities [Line Items]
Amortized cost of trust preferred securities of individual name issuers that are below investment grade	$ 2,000
Unrealized losses of trust preferred securities of individual name issuers that are below investment grade	$ 245