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Derivative Financial Instruments and Hedging Activities (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Notional amount $ 50,000,000 $ 60,000,000
Fair value $ 1,025,000 $ 1,406,000
Weighted average pay rate 1.33% 1.26%
Weighted average receive rate 2.60% 1.88%
Weighted average maturity 1 year 11 months 16 days 2 years 4 months 10 days
Number of contracts $ 3 $ 4
Decrease in notional amount $ 10,000,000