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Investment Securities (Details Narrative) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]      
Security owned and pledged as collateral, fair value, total $ 249,700 $ 232,500  
Equity method investment, ownership percentage 10.00%    
Proceeds from sales of remaining common stock $ 7