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Loans and Allowance for Credit Losses - Loan portfolio aging analysis (Details) $ in Thousands | Dec. 31, 2023 USD ($) loan | Jun. 30, 2023 USD ($) loan
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | $ 3,732,153 | $ 3,619,197
Greater than 90 Days Past Due and Accruing |  | $ 109
Number of PCD loans greater than 90 days past due | loan | 0 | 0
Current Loans, not past due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | $ 3,723,846 | $ 3,608,456
Financial Asset, Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 8,307 | 10,741
30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 5,874 | 4,212
60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,158 | 2,767
Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,275 | 3,762
Residential Real Estate |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,160,264 | 1,133,417
Greater than 90 Days Past Due and Accruing |  | 109
Residential Real Estate | Current Loans, not past due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,157,329 | 1,130,549
Residential Real Estate | Financial Asset, Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 2,935 | 2,868
Residential Real Estate | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,970 | 1,984
Residential Real Estate | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 348 | 401
Residential Real Estate | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 617 | 483
Construction Real Estate |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 244,227 | 190,856
Construction Real Estate | Current Loans, not past due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 243,987 | 189,404
Construction Real Estate | Financial Asset, Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 240 | 1,452
Construction Real Estate | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 240 | 443
Construction Real Estate | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable |  | 311
Construction Real Estate | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable |  | 698
Commercial Real Estate |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,558,600 | 1,562,379
Commercial Real Estate | Current Loans, not past due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,556,081 | 1,558,329
Commercial Real Estate | Financial Asset, Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 2,519 | 4,050
Commercial Real Estate | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 2,208 | 616
Commercial Real Estate | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 275 | 1,854
Commercial Real Estate | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 36 | 1,580
Consumer loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 139,163 | 133,515
Consumer loans | Current Loans, not past due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 137,962 | 132,723
Consumer loans | Financial Asset, Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,201 | 792
Consumer loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 857 | 456
Consumer loans | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 171 | 124
Consumer loans | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 173 | 212
Commercial loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 629,899 | 599,030
Commercial loans | Current Loans, not past due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 628,487 | 597,451
Commercial loans | Financial Asset, Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 1,412 | 1,579
Commercial loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 599 | 713
Commercial loans | 60 to 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | 364 | 77
Commercial loans | Greater than 90 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total Loans Receivable | $ 449 | $ 789

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