Investment Securities Unrealized Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Investments, Debt and Equity Securities [Abstract]
Net Gain on Securities	$ 114	$ 10	$ 355	$ 10
Less: Net gain (loss) recognized during the reporting period on equity securities sold during the period	0		0
Unrealized net gain recognized during the reporting period on equity securities still held at the reporting date	$ 114		$ 355