XML 64 R42.htm IDEA: XBRL DOCUMENT v3.19.3
Securities - Investment Portfolio (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Securities          
Pretax realized losses on sale of available-for-sale securities $ 378 $ 10 $ 956 $ 10  
FHLB and FRB Stock          
FHLBC stock 4,500   4,500   $ 7,200
FRB stock $ 6,200   $ 6,200