XML 58 R47.htm IDEA: XBRL DOCUMENT v3.10.0.1
Securities - Securities with Unrealized Losses Not Recognized in Income (Detail) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]    
12 Months or less, Fair Value $ 125,249 $ 54,040
12 Months or less, Unrealized Loss (1,788) (336)
More than 12 months, Fair Value 54,366 36,125
More than 12 months, Unrealized Loss (1,681) (718)
Total Fair Value 179,615 90,165
Total Unrealized Loss (3,469) (1,054)
U.S. Treasury Securities and Obligations of U.S. Government Agencies [Member]    
Schedule of Available-for-sale Securities [Line Items]    
12 Months or less, Fair Value 7,156 20,449
12 Months or less, Unrealized Loss (107) (100)
More than 12 months, Fair Value 13,774 6,617
More than 12 months, Unrealized Loss (126) (92)
Total Fair Value 20,930 27,066
Total Unrealized Loss (233) (192)
Obligations of States and Political Subdivisions [Member]    
Schedule of Available-for-sale Securities [Line Items]    
12 Months or less, Fair Value 58,768 4,057
12 Months or less, Unrealized Loss (967) (41)
More than 12 months, Fair Value 7,374 7,309
More than 12 months, Unrealized Loss (310) (131)
Total Fair Value 66,142 11,366
Total Unrealized Loss (1,277) (172)
Mortgage-backed Securities in Government Sponsored Entities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
12 Months or less, Fair Value 59,325 29,534
12 Months or less, Unrealized Loss (714) (195)
More than 12 months, Fair Value 33,218 22,199
More than 12 months, Unrealized Loss (1,245) (495)
Total Fair Value 92,543 51,733
Total Unrealized Loss $ (1,959) $ (690)