Loans and Allowance for Loan Losses - Amortized Cost of Collateral (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	$ 12,874	$ 12,589
Business Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	2,379	7,408
Multi-family Residential Portfolio Segment [Member] | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	2,652	2,576
Commercial Real Estate | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	1,158	2,994
One-To-Four Family - Mixed-Use Property Portfolio Segment [Member] | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	1,582	1,706
One-To-Four Family - Residential Portfolio Segment [Member] | Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	7,482	5,313
Small Business Administration Portfolio Segment [Member] | Business Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	952	1,168
Commercial Business and Other Portfolio Segment [Member] | Business Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type	$ 1,427	3,482
Taxi Medallion Portfolio Segment [Member] | Business Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Collateral Type		$ 2,758