Accrued Interest Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Components of accrued interest receivable
Accrued interest receivable	$ 5,409	$ 5,274
Loans receivable
Components of accrued interest receivable
Accrued interest receivable	4,425	4,302
Investment securities
Components of accrued interest receivable
Accrued interest receivable	952	960
Interest-bearing deposits
Components of accrued interest receivable
Accrued interest receivable	$ 32	$ 12