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Accumulated Other Comprehensive Income (Items Reclassified Out of Each Component of OCI) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net realized gains on sales of securities $ 0 $ 63 $ 269 $ 508
Income tax expense (228) (557) (1,307) (1,926)
Net Income 612 1,777 4,365 5,781
Reclassification out of Accumulated Other Comprehensive Income [Member]        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income tax expense [1] 0 (22) (91) (173)
Net Income [1] 0 41 178 335
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized gains on available for sale securities [Member]        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net realized gains on sales of securities [1] $ 0 $ 63 $ 269 $ 508
[1] Amounts in parentheses indicate debits to net income