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Derivatives Schedule of Cash Flow Hedge, Statements of Financial Performance and Position, Location (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2020 | Sep. 30, 2020 | Dec. 31, 2019
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) on Cash Flow Hedging Instruments | $ (575) | $ (1,026) | $ (575)
Borrowing Derivative [Member] |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) on Cash Flow Hedging Instruments |  | (1,026) | (575)
Derivative, Notional Amount |  | 25,000 | 25,000
Loan Derivative [Member] |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) on Cash Flow Hedging Instruments |  | 0 | 0
Derivative, Notional Amount |  | 33,783 | 35,503
Other Assets [Member] | Borrowing Derivative [Member] |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) on Cash Flow Hedging Instruments |  | 0 | 0
Derivative, Notional Amount |  | 0 | 0
Other Assets [Member] | Loan Derivative [Member] |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) on Cash Flow Hedging Instruments |  | 4,503 | 1,781
Derivative, Notional Amount |  | 33,783 | 24,421
Other Assets [Member] | Interest Rate Swap [Member] |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) on Cash Flow Hedging Instruments |  | 4,503 | 1,870
Derivative, Notional Amount |  | 33,783 | 35,504
Other Liabilities [Member] | Borrowing Derivative [Member] |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) on Cash Flow Hedging Instruments |  | (1,026) | (575)
Derivative, Notional Amount |  | 25,000 | 25,000
Other Liabilities [Member] | Loan Derivative [Member] |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) on Cash Flow Hedging Instruments |  | 0 | (89)
Derivative, Notional Amount |  | 0 | 11,083
Other Liabilities [Member] | Interest Rate Swap [Member] |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) on Cash Flow Hedging Instruments |  | (5,529) | (2,445)
Derivative, Notional Amount |  | 58,783 | 60,504
Individually Immaterial Counterparties [Member] | Other Assets [Member] | Loan Derivative [Member] |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) on Cash Flow Hedging Instruments |  | 0 | 89
Derivative, Notional Amount |  | 0 | 11,083
Individually Immaterial Counterparties [Member] | Other Liabilities [Member] | Loan Derivative [Member] |  |  |
Derivative [Line Items] |  |  |
Unrealized Gain (Loss) on Cash Flow Hedging Instruments |  | (4,503) | (1,781)
Derivative, Notional Amount |  | $ 33,783 | $ 24,421

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