Borrowings (Trust Preferred Securities) (Narrative) (Details) - USD ($)						1 Months Ended	12 Months Ended
	Oct. 11, 2018	May 01, 2012	Apr. 30, 2009	Dec. 31, 2008	Feb. 05, 2007	Dec. 31, 2011	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2009	Dec. 31, 2008	Oct. 31, 2018	Dec. 31, 2014	Mar. 31, 2009
Debt Instrument [Line Items]
Trust preferred securities issued					$ 51,500,000
Trust preferred securities issued to third party					50,000,000
Trust preferred securities issued to parent					1,500,000
Investment in common trust securities					1,500,000		$ 838,000	$ 838,000		$ 838,000
Preferred stock dividends payable							272,000	299,000
Marketable securities														$ 11,500,000
Loan amount							$ 283,138,000	$ 252,929,000
Trust Preferred Securities [Member]
Debt Instrument [Line Items]
Trust preferred securities					$ 51,500,000									$ 22,900,000
Debt instrument term					20 years
Initial interest rate		9.22%
Period of initial interest rate		5 years
LIBOR period		3 months
Spread over LIBOR		4.00%
Maturity date							Apr. 30, 2027	Apr. 30, 2027
Principal payment							$ 0
Initial period of payoff restriction							5 years
Percentage of principal that may be paid without penalty after initial restriction period							100.00%
Period of waiver on all financial covenants											9 years
Financial covenant waiver payment due				$ 1,600,000							$ 1,600,000		$ 270,000
Financial covenant waiver payment				$ 1,100,000		$ 270,000
Trust preferred dividends paid							$ 1,800,000	$ 1,600,000	$ 1,400,000
Frequency of interest payment							3 months
Extinguishment of debt			$ 22,900,000
Amortization of debt discount										$ 106,000
Gain on retirement of subordinated debt			10,700,000
Write-off of deferred loan costs			$ 749,000
Loan amount	$ 1,600,000						$ 27,913,000	$ 27,913,000
Initial payment												$ 1,100,000
Contractual obligation due in October 2021							270,000
Contractual obligation due in October 2025							$ 225,000