Related Party Transactions (Summary of Related Party Balances) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
ECCU [Member]
Related Party Transaction [Line Items]
Total funds held on deposit	$ 365	$ 457
Loan participations purchased from and serviced by related party	1,495	5,109
ACCU [Member]
Related Party Transaction [Line Items]
Total funds held on deposit	10,343	5,675
Dollar amount of outstanding loan participations sold to related party and serviced by the Company		3,184
Loan participations purchased from and serviced by related party	$ 1,603	$ 1,662