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Borrowed Funds (Maturity and weighted average interest rates of FHLB advances) (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Federal Home Loan Bank, Advances [Line Items] |  |
FHLB advances, rate | 2.09% | 1.94%
FHLB advances | $ 315,000 | $ 290,000
Fixed Rate Advances Due 2018 [Member] |  |
Federal Home Loan Bank, Advances [Line Items] |  |
FHLB advances, rate | 1.90% | 1.96%
FHLB fixed rate advances | $ 40,000 | $ 70,000
Fixed Rate Advances Due 2019 [Member] |  |
Federal Home Loan Bank, Advances [Line Items] |  |
FHLB advances, rate | 1.94% | 1.87%
FHLB fixed rate advances | $ 100,000 | $ 85,000
Fixed Rate Advances Due 2020 [Member] |  |
Federal Home Loan Bank, Advances [Line Items] |  |
FHLB advances, rate | 2.18% | 1.80%
FHLB fixed rate advances | $ 55,000 | $ 35,000
Fixed Rate Advances Due 2021 [Member] |  |
Federal Home Loan Bank, Advances [Line Items] |  |
FHLB advances, rate | 1.91% | 1.91%
FHLB fixed rate advances | $ 50,000 | $ 50,000
Federal Home Loan Bank, Advances, Variable Rate Due 2021 [Member] [Member] [Member] |  |
Federal Home Loan Bank, Advances [Line Items] |  |
Federal Home Loan Bank, Advances, Floating Rate | $ 10,000 | $ 10,000
FHLB advances, rate | 2.63% | 1.72%
Federal Home Loan Bank, Advances, Fixed Rate Due 2022 [Member] |  |
Federal Home Loan Bank, Advances [Line Items] |  |
FHLB advances, rate | 1.97% | 1.97%
FHLB fixed rate advances | $ 20,000 | $ 20,000
Fixed Rate Advances Due 2023 [Member] |  |
Federal Home Loan Bank, Advances [Line Items] |  |
FHLB advances, rate | 3.36% | 3.90%
FHLB fixed rate advances | $ 20,000 | $ 10,000
Federal Home Loan Bank, Advances, Fixed Rate Due 2024 [Member] [Member] |  |
Federal Home Loan Bank, Advances [Line Items] |  |
FHLB advances, rate | 2.97% | 0.00%
FHLB fixed rate advances | $ 10,000 | $ 0
Federal Home Loan Bank, Advances, Fixed Rate Due 2026 [Member] |  |
Federal Home Loan Bank, Advances [Line Items] |  |
FHLB advances, rate | 1.17% | 1.17%
FHLB fixed rate advances | $ 10,000 | $ 10,000

X
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