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Other Investments (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Jun. 30, 2018
Investments, All Other Investments [Abstract]    
FHLB of Atlanta $ 31,607 $ 29,907
Federal Reserve Bank of Richmond (FRB) 7,315 7,307
Small Business Investment Companies (SBIC) 5,074 4,717
Other investments, at cost $ 43,996 $ 41,931