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Investment Securities - Schedule of Activity of Security Sales by Intention (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Schedule of Investments [Abstract]    
Proceeds from sale of available-for-sale securities $ 0 $ 0
Gross gains on sale of available-for-sale securities 0 0
Gross losses on sale of available-for-sale securities 0 0
Net gains (losses) on sales of available for sale securities 0 0
Amortized cost of securities sold securities held to maturity 0 0
Proceeds from sale of securities held to maturity 0 0
Net gains on sales of held to maturity securities $ 0 $ 0