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Investment Securities (Details 2) - USD ($)
shares in Thousands, $ in Thousands
Mar. 31, 2019
Dec. 31, 2018
U.S. Government agency securities [Member]    
Number of Securities 7 7
Available-for-sale securities, less than 12 months, fair value $ 0 $ 0
Available-for-sale securities, less than 12 months, gross unrealized losses 0 0
Available-for-sale securities, greater than 12 months, fair value 2,312 2,277
Available-for-sale securities, greater than 12 months, gross unrealized losses 37 72
Available-for-sale securities, fair value 2,312 2,277
Available-for-sale securities, gross unrealized losses $ 37 $ 72
Government Sponsored Enterprises residential mortgage-backed securities [Member]    
Number of Securities 10 14
Available-for-sale securities, less than 12 months, gross unrealized losses $ 0 $ 10
Available-for-sale securities, greater than 12 months, fair value 1,549 1,299
Available-for-sale securities, greater than 12 months, gross unrealized losses 19 44
Available-for-sale securities, fair value 1,549 2,017
Available-for-sale securities, gross unrealized losses 19 54
Available-for-sale securities, less than 12 months, fair value $ 0 $ 718
Total temporarily impaired investment Securities [Member]    
Number of Securities 17 21
Available-for-sale securities, less than 12 months, fair value $ 0 $ 10
Available-for-sale securities, greater than 12 months, gross unrealized losses 56 116
Available-for-sale securities, fair value 3,861 4,294
Available-for-sale securities, gross unrealized losses 56 126
Available-for-sale securities, less than 12 months, fair value 0 718
Available-for-sale securities, greater than 12 months, fair value $ 3,861 $ 3,576