Loans (Performance of Loans that are Modified to Borrowers Experiencing Financial Difficulty) (Details) - Extended Maturity [Member] $ in Thousands	Mar. 31, 2023 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	$ 158
Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	158
30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Commercial Business [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Commercial Business [Member] | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Commercial Business [Member] | 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Commercial Business [Member] | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Commercial Mortgage [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Commercial Mortgage [Member] | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Commercial Mortgage [Member] | 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Commercial Mortgage [Member] | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Residential Real Estate Loans [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	158
Residential Real Estate Loans [Member] | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	158
Residential Real Estate Loans [Member] | 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Residential Real Estate Loans [Member] | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Residential Real Estate Lines [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Residential Real Estate Lines [Member] | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Residential Real Estate Lines [Member] | 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Residential Real Estate Lines [Member] | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Consumer Indirect [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Consumer Indirect [Member] | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Consumer Indirect [Member] | 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Consumer Indirect [Member] | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Other Consumer [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Other Consumer [Member] | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Other Consumer [Member] | 30-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	0
Other Consumer [Member] | 90+ Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivables, amortized cost basis	$ 0