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Derivatives (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2020
USD ($)
instrument
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
instrument
Jun. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
instrument
Derivative [Line Items]          
Swap income $ 308,000 $ 0 $ 384,000 $ 0  
Interest Rate Swap          
Derivative [Line Items]          
Number of derivative instruments held | instrument 4   4   1
Derivative, notional amount $ 24,800,000   $ 24,800,000   $ 12,000,000.0
Derivative assets (liabilities), at fair value $ 1,600,000   $ 1,600,000   $ 79,000