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Assets and Liabilities Subject to Enforceable Master Netting Arrangements (Schedule of Assets and Liabilities Subject to an Enforceable Master Netting Arrangement or Repurchase Agreements) (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Investment security collateral as a percentage of borrowing | 102.00% |
Repurchase Agreements [Member] |  |
Gross Amounts of Recognized (Assets)/Liabilities | $ 51,454 | $ 49,160
Gross Amounts Offset in the Statement of Condition |  |
Net Amounts of (Assets)/Liabilities Presented in the Statement of Condition | 51,454 | 49,160
Gross Amounts Not Offset in the Statment of Condition: Financial Instruments | (51,454) | (49,160)
Gross Amounts Not Offset in the Statment of Condition: Cash Collateral Pledged |  |
Net amount |  |
Interest Rate Swap Agreements [Member] |  |
Gross Amounts of Recognized (Assets)/Liabilities | 834 | 1,320
Gross Amounts Offset in the Statement of Condition |  |
Net Amounts of (Assets)/Liabilities Presented in the Statement of Condition | 834 | 1,320
Gross Amounts Not Offset in the Statment of Condition: Financial Instruments | (834) | (1,320)
Gross Amounts Not Offset in the Statment of Condition: Cash Collateral Pledged | 2,000 |
Net amount |  |

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