Guarantees and Indemnifications Guarantees (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Guarantees [Abstract]
Total of Loans Covered by Guarantees	$ 44,600	$ 48,100
Total of Guaranteed Loans Inquired About	600	600
Total Loans Indemnified to third parties	1,000	1,000
Loan Repurchase Guarantee Liability	$ 500	$ 500