Loans and Allowance for Credit Losses (Details 4) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Nonaccrual loan, recorded investment	[1],[2]	$ 13,387	$ 13,238
Commercial [Member]
Nonaccrual loan, recorded investment		3,595	3,493
Income Producing - Commercial Real Estate [Member]
Nonaccrual loan, recorded investment		50	832
Owner Occupied - Commercial Real Estate - [Member]
Nonaccrual loan, recorded investment		5,361	5,501
Real Estate Mortgage - Residential [Member]
Nonaccrual loan, recorded investment		1,745	775
Construction - Commercial And Residencial [Member]
Nonaccrual loan, recorded investment		2,051	2,052
Home Equity [Member]
Nonaccrual loan, recorded investment		494	494
Other Consumer [Member]
Nonaccrual loan, recorded investment		$ 91	$ 91

[1] Excludes troubled debt restructurings ("TDRs") that were performing under their restructured terms totaling $11.5 million at March 31, 2018 and $12.3 million at December 31, 2017.

[2] Gross interest income of $205 thousand and $304 thousand would have been recorded for the three months ended March 31, 2018 and 2017, respectively, if nonaccrual loans shown above had been current and in accordance with their original terms, while the interest actually recorded on such loans was zero and $90 thousand for the three months ended March 31, 2018 and 2017, respectively. See Note 1 to the Consolidated Financial Statements for a description of the Company's policy for placing loans on nonaccrual status.