Securities - Realized Gains and Losses (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) security	Mar. 31, 2020 USD ($) security	Dec. 31, 2020 USD ($)
Schedule of Investments
Realized gains	$ 43	$ 296
Realized losses	0	$ 0
Available-for-sale securities pledged as collateral	$ 1,500		$ 1,600
1 Security Sold | Municipal Securities
Schedule of Investments
Number of securities sold | security		1
Book value		$ 381
Securities realized gain (loss)		$ 27
1 Security Sold | Taxable Municipal Securities
Schedule of Investments
Number of securities sold | security		1
Book value		$ 456
Securities realized gain (loss)		$ 140
3 Mortgage Backed Securities | Mortgage-backed securities
Schedule of Investments
Number of securities sold | security		3
Book value		$ 2,800
Securities realized gain (loss)		$ 57
6 Corporate Bonds | Corporate Bond Securities
Schedule of Investments
Number of securities sold | security	6
Book value	$ 7,000
Securities realized gain (loss)	39
1 Corporate Bond | Corporate Bond Securities
Schedule of Investments
Number of securities sold | security		1
Book value		$ 2,200
Securities realized gain (loss)		61
1 Security Called | Municipal Securities
Schedule of Investments
Book value		485
Securities realized gain (loss)	$ 4	$ 11
1 Security Called | Taxable Municipal Securities
Schedule of Investments
Number of securities sold | security	1
Book value	$ 496