Affordable Housing Tax Credit Limited Partnership (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Equity Method Investments and Joint Ventures [Abstract]
Affordable housing tax credit investment	$ 10,000		$ 10,000		$ 7,000
Less amortization	1,203		1,203		810
Net affordable housing tax credit investment	8,797		8,797		6,190
Unfunded commitment	6,864		$ 6,864		4,596
Funding period for unfunded commitment (in years)			10 years 3 months
Investments in Affordable Housing Projects [Abstract]
Tax credits and other tax benefits recognized	264	$ 94	$ 802	$ 262
Tax credit amortization expense included in provision for income taxes	130	$ 33	393	$ 124
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	112		112		$ 0
Taxable Municipal securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 112		$ 112