Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019
Equity [Abstract]
Reclassification adjustment for net gains on investment securities available-for-sale realized in net income, before tax amount	$ 0	$ (11)	$ (8)
Reclassification adjustment for net gains on investment securities available-for-sale realized in net income, tax		2	2
Total reclassifications		$ (9)	$ (6)