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Interest Rate Swap Derivatives (Details 3) - Interest Rate Swap [Member] - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Gross Amount of Recognized Assets | $ 873 | $ 3,781
Net amounts of assets presented in the balance sheet | 873 | 3,781
Gross amounts not offset in the balance sheet net amount | 873 | 3,781
Counter Party 1 [Member] |  |
Gross Amount of Recognized Assets | 944 | 2,948
Net amounts of assets presented in the balance sheet | 944 | 2,948
Gross amounts not offset in the balance sheet net amount | 944 | 2,948
Counter Party 3 [Member] |  |
Gross Amount of Recognized Assets | (71) | (59)
Net amounts of assets presented in the balance sheet | (71) | (59)
Gross amounts not offset in the balance sheet net amount | $ (71) | (59)
Counter Party 2 [Member] |  |
Gross Amount of Recognized Assets |  | 892
Net amounts of assets presented in the balance sheet |  | 892
Gross amounts not offset in the balance sheet net amount |  | $ 892

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