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- Schedule of Investment Securities - Available-for-sale (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Investments Schedule [Abstract]    
Cost $ 3,696 $ 21,240
Unrealized Loss (1,673) (630)
Unrealized Gain 0 52
Fair Value $ 2,023 $ 20,662