Securities - Realized Gains and Losses (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) security	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Schedule of Investments [Line Items]
Realized gains	$ 5	$ 0	$ 301	$ 0
Realized losses	0	$ 0	0	$ 0
Total debt securities available for sale	5		301
Net gains on sales of securities	5		301
Securities realized gain (loss)			16
Available-for-sale securities pledged as collateral	3,100		$ 3,100		$ 4,000
1 Corporate Bond | Corporate Bond Securities
Schedule of Investments [Line Items]
Number of securities sold | security			1
Book value of securities sold	2,200		$ 2,200
Securities realized gain (loss)			$ 61
3 Mortgage Backed Securities | Commercial mortgage-backed securities
Schedule of Investments [Line Items]
Number of securities sold | security			3
Book value of securities sold	2,800		$ 2,800
Securities realized gain (loss)			$ 57
1 Security Sold | Municipal Securities
Schedule of Investments [Line Items]
Number of securities sold | security			1
Book value of securities sold	381		$ 381
Securities realized gain (loss)			$ 27
1 Security Sold | Taxable Municipal Securities
Schedule of Investments [Line Items]
Number of securities sold | security			1
Book value of securities sold	456		$ 456
Securities realized gain (loss)			$ 140
1 Security Called | Municipal Securities
Schedule of Investments [Line Items]
Number of securities sold | security			3
Book value of securities sold	$ 3,800		$ 3,800