Investment Securities - Unrealized Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Net Gain (Loss) on Equity Securities	$ 196	$ (106)	$ 356	$ (480)
Less: Net gain (loss) recognized during the reporting period on equity securities sold during the period	0	0	0	0
Unrealized net gain (loss) recognized during the reporting period on equity securities still held at the reporting date	$ 196	$ (106)	$ 356	$ (480)