XML 107 R55.htm IDEA: XBRL DOCUMENT v3.20.1
Investment Securities - Summary Information Regarding Investment Securities Classified as Available for Sale and Held to Maturity (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]    
Securities available for sale, Amortized Cost $ 256,445 $ 262,923
Securities available for sale, Gross Unrealized Gains 1,959 695
Securities available for sale, Gross Unrealized Losses, Less Than 1 Year 652 367
Gross unrealized losses, Over 1 Year 431 3,120
Investment securities available for sale, at fair value 257,321 260,131
Securities held to maturity, Amortized Cost 7,149 10,872
Securities held to maturity, Gross Unrealized Gains 45 11
Securities held to maturity, Gross unrealized losses, Less Than 1 Year 0 5
Securities held to maturity, Gross unrealized losses, Over 1 Year 0 37
Investment securities held to maturity 7,194 10,841
U.S. agency mortgage-backed    
Debt Securities, Available-for-sale [Line Items]    
Securities available for sale, Amortized Cost 94,446 86,487
Securities available for sale, Gross Unrealized Gains 1,081 485
Securities available for sale, Gross Unrealized Losses, Less Than 1 Year 292 171
Gross unrealized losses, Over 1 Year 63 892
Investment securities available for sale, at fair value 95,172 85,909
Collateralized mortgage obligations    
Debt Securities, Available-for-sale [Line Items]    
Securities available for sale, Amortized Cost 142,408 145,814
Securities available for sale, Gross Unrealized Gains 701 129
Securities available for sale, Gross Unrealized Losses, Less Than 1 Year 300 161
Gross unrealized losses, Over 1 Year 358 2,191
Investment securities available for sale, at fair value 142,451 143,591
Municipal bonds    
Debt Securities, Available-for-sale [Line Items]    
Securities available for sale, Amortized Cost 15,895 21,453
Securities available for sale, Gross Unrealized Gains 166 52
Securities available for sale, Gross Unrealized Losses, Less Than 1 Year 56 16
Gross unrealized losses, Over 1 Year 0 12
Investment securities available for sale, at fair value 16,005 21,477
Securities held to maturity, Amortized Cost 7,149 10,872
Securities held to maturity, Gross Unrealized Gains 45 11
Securities held to maturity, Gross unrealized losses, Less Than 1 Year 0 5
Securities held to maturity, Gross unrealized losses, Over 1 Year 0 37
Investment securities held to maturity 7,194 10,841
U.S. government agency    
Debt Securities, Available-for-sale [Line Items]    
Securities available for sale, Amortized Cost 3,696 9,169
Securities available for sale, Gross Unrealized Gains 11 29
Securities available for sale, Gross Unrealized Losses, Less Than 1 Year 4 19
Gross unrealized losses, Over 1 Year 10 25
Investment securities available for sale, at fair value $ 3,693 $ 9,154