Loans - Summary of Company's Carrying Value of Non-Accrual TDR's (Details) - Non-Accruing TDR [Member] - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Loans [Line Items]
Carrying Value of Non - Accruing TDR's	$ 3,495	$ 3,438
Amount of increase in non-accrual TDRs	100
Commercial [Member]
Loans [Line Items]
Carrying Value of Non - Accruing TDR's	1,667	1,854
Residential Real Estate Segment [Member]
Loans [Line Items]
Carrying Value of Non - Accruing TDR's	$ 1,828	$ 1,584