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Fair Value Measurements - Schedule of financial instruments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
Financial assets |  |
Cash and cash equivalents | $ 60,904 | $ 53,979
Interest-bearing time deposits | 491 | 1,242
Stock in FHLB | 8,713 | 11,540
Stock in Federal Reserve Bank of St. Louis | 9,089 | 9,061
Loans receivable, net | 3,797,287 | 3,571,078
Accrued interest receivable | 23,826 | 18,871
Mortgage Servicing Assets, Fair Value Disclosure | 2,448 |
Derivative financial instruments | 20 |
Financial liabilities |  |
Deposits | 3,952,457 | 3,725,540
Advances from FHLB | 102,050 | 133,514
Accrued interest payable | 12,868 | 4,723
Subordinated debt | 23,156 | 23,105
Derivative financial instruments | 15 |
Fair Value, Inputs, Level 1 |  |
Financial assets |  |
Cash and cash equivalents | 60,904 | 53,979
Financial liabilities |  |
Deposits | 2,607,653 | 2,661,479
Fair Value, Inputs, Level 2 |  |
Financial assets |  |
Interest-bearing time deposits | 491 | 1,242
Stock in FHLB | 8,713 | 11,540
Stock in Federal Reserve Bank of St. Louis | 9,089 | 9,061
Accrued interest receivable | 23,826 | 18,871
Derivative financial instruments | 20 |
Financial liabilities |  |
Advances from FHLB | 100,468 | 131,821
Accrued interest payable | 12,868 | 4,723
Derivative financial instruments | 15 |
Fair Value, Inputs, Level 3 |  |
Financial assets |  |
Loans receivable, net | 3,639,657 | 3,393,791
Mortgage Servicing Assets, Fair Value Disclosure | 2,448 |
Financial liabilities |  |
Deposits | 1,338,215 | 1,053,650
Subordinated debt | $ 20,576 | $ 20,318

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