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Borrowings (Narrative) (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2020 USD ($)
Federal Reserve Bank Of Boston's [Member] |
Federal Home Loan Bank, Advances [Line Items] |
Overnight borrowings | $ 60.0
Interest rate on overnight borrowings | 0.25%
Federal Home Loan Bank Of Boston [Member] |
Federal Home Loan Bank, Advances [Line Items] |
Aggregate borrowings from FHLB | $ 13.5
Federal Home Loan Bank Of Boston [Member] | Minimum [Member] |
Federal Home Loan Bank, Advances [Line Items] |
Interest rates on FHLB advances ranged from | 1.21%
Term of FHLB borrowings | 1 year
Federal Home Loan Bank Of Boston [Member] | Maximum [Member] |
Federal Home Loan Bank, Advances [Line Items] |
Interest rates on FHLB advances ranged from | 3.01%
Federal Home Loan Bank Of Boston [Member] | Weighted Average [Member] |
Federal Home Loan Bank, Advances [Line Items] |
Interest rates on FHLB advances ranged from | 2.12%

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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Discloses the single interest rate [if] applicable to the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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