Core Deposit Intangible - Schedule of Finite-Lived Intangible Assets Amortization Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 184	$ 496
Core Deposits [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	496	$ 523	$ 550
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2015	184
2016	61
2017	34
2018	7
2019	$ 0