v3.26.3
Loans, Modifications in Last 12 Months, Performance - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Financial Asset, Not Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount $ 8,436 $ 7,324
Financial Asset, 30-89 Days Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 2,112 880
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 867 433
Commercial and Industrial Sector | Financial Asset, Not Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 301 458
Commercial and Industrial Sector | Financial Asset, 30-89 Days Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 0 0
Commercial and Industrial Sector | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 0 0
Residential Mortgage [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 6,085 4,424
Residential Mortgage [Member] | Financial Asset, 30-89 Days Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 1,965 880
Residential Mortgage [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 867 433
Home Equity Line of Credit [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 49 221
Home Equity Line of Credit [Member] | Financial Asset, 30-89 Days Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 147 0
Home Equity Line of Credit [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 0 0
Other Consumer [Member] | Financial Asset, Not Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 2,001 2,220
Other Consumer [Member] | Financial Asset, 30-89 Days Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount 0 0
Other Consumer [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]    
Financing Receivable, Modified in the Last 12 Months, Performance [Line Items]    
Financing Receivable, Modified in Period, Amount $ 0 $ 0