Securities (Details Textual)		3 Months Ended			6 Months Ended
	Mar. 01, 2020 USD ($) security	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Investments, Debt and Equity Securities [Abstract]
Number of available for sale securities transferred to held for sale | security	10
Available for sale securities transferred to held to maturity	$ 4,500,000
Unrealized holding gain, net of tax, retained in accumulated other comprehensive income	$ 100,000
Available-for-sale securities, gross realized gain (loss)		$ 0	$ (458,000)		$ 41,000	$ (458,000)
Continuous unrealized loss position, fair value		$ 237,500,000			$ 237,500,000		$ 317,500,000
Continuous unrealized loss position, fair value (as a percent)				53.00%	36.00%