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Loans and Allowance for Credit Losses - Classes of loans (Details) $ in Thousands | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) | Sep. 30, 2021 USD ($) | Jun. 30, 2021 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Real Estate Loans | $ 3,205,614 | $ 2,843,499 |  |  |  |
Loans in Process | (210,250) | (123,656) |  |  |  |
Deferred loan fees, net | (345) | (453) |  |  |  |
Allowance for credit losses | (37,483) | (33,192) | $ (37,418) | $ (32,529) | $ (32,543) | $ (33,222)
Total loans | $ 2,957,536 | $ 2,686,198 |  |  |  |
Number of purchased participation loans | 38 | 31 |  |  |  |
Purchased participation loans | $ 63,600 | $ 70,000 |  |  |  |
Residential Real Estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Real Estate Loans | 1,029,793 | 904,160 |  |  |  |
Allowance for credit losses | (12,499) | (8,908) | (11,937) | (10,757) | (10,634) | (11,192)
Construction Real Estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Real Estate Loans | 365,398 | 258,072 |  |  |  |
Allowance for credit losses | (2,754) | (2,220) | (2,503) | (2,126) | (2,045) | (2,170)
Commercial Real Estate |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Real Estate Loans | 1,246,447 | 1,146,673 |  |  |  |
Allowance for credit losses | (16,806) | (16,838) | (17,886) | (14,727) | (14,883) | (14,535)
Consumer loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Real Estate Loans | 103,756 | 92,996 |  |  |  |
Allowance for credit losses | (761) | (710) | (693) | (830) | (873) | (916)
Commercial loans |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Real Estate Loans | 460,220 | 441,598 |  |  |  |
Allowance for credit losses | $ (4,663) | $ (4,516) | $ (4,399) | $ (4,089) | $ (4,108) | $ (4,409)

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- Definition Unearned discounts (other than cash or quantity discounts and the like), finance charges, and interest included in the face amount of receivables, that are shown as a deduction from the related receivables. For example, 1) finance charges booked as a receivable when a loan is made and recognized as income at a later date; and 2) interest charges deducted from the face loan amount, resulting in a discounted amount actually advanced to the borrower (wherein the receivable includes the amount actually advanced to the borrower and the as yet unearned interest income). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4519-111522 + Details
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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 + Details
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- Definition Amount, before allowance and fees, of loans and leases receivable. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522 + Details
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