Securities (Details 1) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Amortized Cost
Due in one year or less	$ 10,297
Due after one but within five years	57,759
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	43,921
Due after ten years	249,936
Total of securities having specified maturity period	361,913
TOTAL	895,703	$ 907,575
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost	533,790
Fair Value
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value	10,359
Due after one but within five years	59,055
Due after five but within ten years	45,180
Due after ten years	265,536
Total of securities having specified maturities period	380,130
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value	551,911
Securities available-for-sale	$ 932,041	$ 926,717