Fair Values of Financial Instruments - Recurring (Details) - Recurring - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets measured on a recurring basis
Total Investment Securities	$ 5,329	$ 6,050
Mortgage-Backed Securities | FHLMC
Assets measured on a recurring basis
Total Investment Securities	2,767	2,874
SBA 7a Pools
Assets measured on a recurring basis
Total Investment Securities	2,562	3,176
Level 2
Assets measured on a recurring basis
Total Investment Securities	5,329	6,050
Level 2 | Mortgage-Backed Securities | FHLMC
Assets measured on a recurring basis
Total Investment Securities	2,767	2,874
Level 2 | SBA 7a Pools
Assets measured on a recurring basis
Total Investment Securities	$ 2,562	$ 3,176