Investment Securities - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) security	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) security	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Investments, Debt and Equity Securities [Abstract]
Number of individual securities that were in a continuous unrealized loss position for less than twelve months (in securities) | security	15		15
Number of individual securities that were in a continuous unrealized loss position for greater than twelve months (in securities) | security	7		7
Gross proceeds from sales of securities	$ 2,389,000	$ 1,146,000	$ 5,163,000	$ 8,132,000
Impairment charges	0	$ 0	0	$ 0
Carrying value of investment securities pledged	111,168,381		111,168,381		$ 74,163,000
Fair value	$ 1,291,000		$ 1,291,000		$ 1,261,000