TDR's and Other Pertinent Information (Details) - USD ($) $ in Thousands	Dec. 31, 2018		Dec. 31, 2017
Summary of Troubled Debt Restructurings and other pertinent information
TDRs on accrual status	$ 23,849		$ 25,852
TDRs on nonaccrual status	29,348	[1]	6,067
Total TDRs	53,197		31,919
Amount of specific reserves included in the allowance for loan loss associated with TDRs:	1,079		1,342
Additional commitments to lend to a borrower who has been a party to a TDR:	$ 982		$ 487

[1] (1)During the fourth quarter of 2018 nonaccrual loans associated with a large commercial loan customer that had previously declared bankruptcy were modified when a court confirmed the customer's bankruptcy reorganization plan. That revision to loan terms required the Company to deem loans associated with the customer as troubled debt restructures as of December 31, 2018 which amounted to $25.9 million.