Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of Fair Value on a recurring basis - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Available-for-sale:
Securities available-for-sale	$ 516,539	$ 412,034
Derivatives	768	1,159
Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Securities available-for-sale	1,565	2,990
Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Securities available-for-sale	505,663	399,667
Fair Value, Inputs, Level 3 [Member]
Available-for-sale:
Securities available-for-sale	9,311	9,377
Federal agency obligations [Member]
Available-for-sale:
Securities available-for-sale	43,280	44,955
Residential mortgage pass-through securities [Member]
Available-for-sale:
Securities available-for-sale	253,201	185,204
Commercial mortgage pass-through securities [Member]
Available-for-sale:
Securities available-for-sale	6,915	3,874
Obligations of U.S. states and political subdivisions [Member]
Available-for-sale:
Securities available-for-sale	168,170	139,185
Corporate bonds and notes [Member]
Available-for-sale:
Securities available-for-sale	35,071	25,813
Asset-backed securities [Member]
Available-for-sale:
Securities available-for-sale	8,187	9,691
Certificates of deposit [Member]
Available-for-sale:
Securities available-for-sale	150	322
Other securities [Member]
Available-for-sale:
Securities available-for-sale	1,565	2,990
Recurring [Member]
Available-for-sale:
Securities available-for-sale	516,539	412,034
Equity securities	11,564	11,460
Derivatives	768	1,159
Fair value	528,871	424,653
Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Securities available-for-sale	1,565	2,990
Equity securities	11,564	11,460
Derivatives
Fair value	13,129	14,450
Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Securities available-for-sale	505,663	399,667
Equity securities
Derivatives	768	1,159
Fair value	506,431	400,826
Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale:
Securities available-for-sale	9,311	9,377
Equity securities
Derivatives
Fair value	9,311	9,377
Recurring [Member] | Federal agency obligations [Member]
Available-for-sale:
Securities available-for-sale	43,280	44,955
Recurring [Member] | Federal agency obligations [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Federal agency obligations [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Securities available-for-sale	43,280	44,955
Recurring [Member] | Federal agency obligations [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Residential mortgage pass-through securities [Member]
Available-for-sale:
Securities available-for-sale	253,201	185,204
Recurring [Member] | Residential mortgage pass-through securities [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Residential mortgage pass-through securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Securities available-for-sale	253,201	185,204
Recurring [Member] | Residential mortgage pass-through securities [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Commercial mortgage pass-through securities [Member]
Available-for-sale:
Securities available-for-sale	6,915	3,874
Recurring [Member] | Commercial mortgage pass-through securities [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Commercial mortgage pass-through securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Securities available-for-sale	6,915	3,874
Recurring [Member] | Commercial mortgage pass-through securities [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Obligations of U.S. states and political subdivisions [Member]
Available-for-sale:
Securities available-for-sale	168,170	139,185
Recurring [Member] | Obligations of U.S. states and political subdivisions [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Obligations of U.S. states and political subdivisions [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Securities available-for-sale	158,859	129,808
Recurring [Member] | Obligations of U.S. states and political subdivisions [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale:
Securities available-for-sale	9,311	9,377
Recurring [Member] | Corporate bonds and notes [Member]
Available-for-sale:
Securities available-for-sale	35,071	25,813
Recurring [Member] | Corporate bonds and notes [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Corporate bonds and notes [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Securities available-for-sale	35,071	25,813
Recurring [Member] | Corporate bonds and notes [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Asset-backed securities [Member]
Available-for-sale:
Securities available-for-sale	8,187	9,691
Recurring [Member] | Asset-backed securities [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Asset-backed securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Securities available-for-sale	8,187	9,691
Recurring [Member] | Asset-backed securities [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Certificates of deposit [Member]
Available-for-sale:
Securities available-for-sale	150	322
Recurring [Member] | Other securities [Member]
Available-for-sale:
Securities available-for-sale	1,565	2,990
Recurring [Member] | Other securities [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Securities available-for-sale	1,565	2,990
Recurring [Member] | Other securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Other securities [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Certificate Of Deposit [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Securities available-for-sale
Recurring [Member] | Certificate Of Deposit [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Securities available-for-sale	150	322
Recurring [Member] | Certificate Of Deposit [Member] | Fair Value, Inputs, Level 3 [Member]
Available-for-sale:
Securities available-for-sale