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Securities - Equity Securities (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2018
Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]      
Securities - equity investments $ 474 $ 474 $ 1,817
Equity securities, gross unrealized loss 67 62  
Equity securities, sold, amount 266 1,200  
Loss on sale of equity investments $ 2 $ 25