Subordinated Notes (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018	Feb. 13, 2015	Feb. 06, 2015
Debt Instrument [Line Items]
Subordinated notes interest rate	6.25%	6.25%
Subordinated note terms and conditions	Interest will accrue at a fixed per annum rate of 6.25% from and including the issue date to but excluding February 15, 2020. From and including February 15, 2020 to but excluding the maturity date interest will accrue at a floating rate equal to the three-month LIBOR plus 479 basis points. Interest is payable on the notes on February 15 and August 15 of each year, commencing August 15, 2015, through February 15, 2020, and thereafter February 15, May 15, August 15 and November 15 of each year through the maturity date or earlier redemption date.
Preferred stock, redemption date	Feb. 13, 2015
Preferred stock, value			$ 20,000,000
Subordinated Debt [Member]
Debt Instrument [Line Items]
Debt instrument, face amount				$ 23,000,000
Interest rate	6.25%
Subordinated notes interest rate	6.25%	6.25%
Maturity date	Feb. 15, 2025
Redemption percentage	100.00%
Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	4.79%