Investment Securities Debt Securities by Contactual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Amortized Cost
Due in one year or less	$ 940
Due from one to five years	4,823
Due from five to ten years	12,861
Due after ten years	21,856
Debt securities with single maturity date, amortized cost	40,480
Agency mortgage-backed	44,357
Total debt securities available-for-sale	84,837	$ 86,145
Fair Value
Due in one year or less	943
Due from one to five years	5,142
Due from five to ten years	13,523
Due after ten years	22,759
Debt securities with single maturity date, fair value	42,367
Agency mortgage-backed	45,753
Total debt securities available-for-sale	$ 88,120	$ 87,393