XML 72 R56.htm IDEA: XBRL DOCUMENT v3.8.0.1
Securities - Sales Transactions of Securities Available-for-Sale (Details) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]      
Proceeds from sales $ 64,106,000 $ 97,296,000 $ 137,594,000
Gross realized gains 19,000 894,000 1,359,000
Gross realized losses (426,000) 0 (282,000)
Net (loss) gain on sales of available-for-sale securities (407,000) 894,000 1,077,000
Sales of held-to-maturity securities $ 0 $ 0 $ 0