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Fair Value Measurements (Details Textual) - USD ($)
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Fair Value Disclosures [Abstract]    
Fair value measurement transfers from one level to another $ 0 $ 0
Loans Held For Sale | Gain on sale of loans    
Fair Value, Option, Quantitative Disclosures    
Changes in fair value, gain (loss) $ 993,000 $ (239,000)