TDR's and Other Pertinent Information (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Summary of Troubled Debt Restructurings and other pertinent information
TDRs on accrual status	$ 19,599	$ 23,849
TDRs on nonaccrual status	24,766	29,348
Total TDRs	44,365	53,197
Amount of specific reserves included in the allowance for loan loss associated with TDRs:	855	1,079
Additional commitments to lend to a borrower who has been a party to a TDR:	$ 63	$ 982