Loans and Allowance for Loan Losses, Information Regarding Nonperforming Assets (Details) - USD ($) $ in Thousands		Dec. 31, 2018	Dec. 31, 2017
Loans and Allowance for Loan Losses [Abstract]
Nonaccrual loans		$ 2,615	$ 1,217
Troubled-debt restructurings	[1]	0	675
Accruing loans 90 or more days past due		0	0
Total nonperforming loans		2,615	1,892
Commercial & Industrial [Member]
Loans and Allowance for Loan Losses [Abstract]
Accruing loans 90 or more days past due		0	0
Troubled Debt Restructurings [Abstract]
TDR's loans impaired		$ 501	$ 861

[1] $501,000 and $861,000 of TDRs as of December 31, 2018 and 2017, respectively, are included in the nonaccrual loans balance in the line above