Long-Term Debt - Schedule of Long-Term Debt (Details) (Parenthetical)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Advance From FHLB With A 3.39% Fixed Rate Of Interest Maturing August 20, 2018 [Member]
Long term debt interest rate	3.39%	3.39%
Long term debt maturity date	Aug. 20, 2018	Aug. 20, 2018
Advance From FHLB With A 2.78% Fixed Rate Of Interest Maturing September 10, 2018 [Member]
Long term debt interest rate	2.78%	2.78%
Long term debt maturity date	Sep. 10, 2018	Sep. 10, 2018
Advance From FHLB With 1.43% Fixed Rate Of Interest With Annual Installment Payments Maturing September 4, 2018 [Member]
Long term debt interest rate	1.43%	1.43%
Long term debt maturity date	Sep. 04, 2018	Sep. 04, 2018
Advance From FHLB with 1.25% Fixed Rate Of Interest With Annual Installment Payments Maturing September 30, 2020 [Member]
Long term debt interest rate	1.25%	1.25%
Long term debt maturity date	Sep. 30, 2020	Sep. 30, 2022
Advance From FHLB With 1.94% Fixed Rate Of Interest With Annual Installment Payments Maturing December 16, 2022 [Member]
Long term debt interest rate	1.94%	1.94%
Long term debt maturity date	Dec. 16, 2022	Dec. 16, 2022
Advance From FHLB With 1.42% Fixed Rate Of Interest With Annual Installment Payments Maturing August 30, 2023 [Member]
Long term debt interest rate	1.42%	1.42%
Long term debt maturity date	Aug. 30, 2023	Aug. 30, 2023
Advance from FHLB With a 1.53% Fixed Rate of Interest Maturing January 10, 2019 [Member]
Long term debt interest rate	1.53%	1.53%
Long term debt maturity date	Jan. 10, 2019	Jan. 10, 2019
Advance from FHLB With a 1.60% Fixed Rate of Interest Maturing July 10, 2019 [Member]
Long term debt interest rate	1.60%	1.60%
Long term debt maturity date	Jul. 10, 2019	Jul. 10, 2019
Advance from FHLB With a 1.80% Fixed Rate of Interest Maturing July 10, 2020 [Member]
Long term debt interest rate	1.80%	1.80%
Long term debt maturity date	Jul. 10, 2020	Jul. 10, 2020
Advance from FHLB With a 1.93% Fixed Rate of Interest With Annual Installment Payments Maturing September 28, 2022 [Member]
Long term debt interest rate	1.93%	1.93%
Long term debt maturity date	Sep. 28, 2022	Sep. 28, 2022
Advance from FHLB With a 2.34% Fixed Rate of Interest With Annual Installment Payments Maturing December 5, 2024 [Member]
Long term debt interest rate	2.34%	2.34%
Long term debt maturity date	Dec. 05, 2024	Dec. 05, 2024