Loan-Level Interest Rate Swaps (Notional Amount, and Collateral Posted Related to Loan-level Interest Rate Swaps) (Details) - Commercial Loan [Member] - Not Designated as Hedging [Member] $ in Thousands	Dec. 31, 2020 USD ($)
Other Assets [Member]
Derivative [Line Items]
Interest Rate Swap Contracts - Commercial Loans, Fair Value (a)	$ 489	[1]
Interest Rate Swaps {Member]
Derivative [Line Items]
Interest Rate Swap Contracts - Commercial Loans, Notional Amount	22,331
Interest Rate Swap Contracts - Commercial Loans, Cash Collateral Posted (b)	$ 500	[2]

[1] Included in other assets on the Consolidated Balance Sheets

[2] Included in cash and due from banks on the Consolidated Balance Sheet