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Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Sep. 30, 2017
Sep. 30, 2016
Other comprehensive income, tax:                
Unrealized (loss)/gain on investment securities available for sale arising during the period, tax $ (493)     $ (494)     $ 775 $ 2,795
Reclassification adjustment for realized gains on sale of securities available for sale included in net income, tax   $ 8 $ 8   $ 33 $ 33