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Fair Value Measurements - Schedule of financial instruments (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 | Jun. 30, 2023
Financial assets |  |
Cash and cash equivalents | $ 88,193 | $ 53,979
Interest-bearing time deposits | 987 | 1,242
Stock in FHLB | 10,900 | 11,540
Stock in Federal Reserve Bank of St. Louis | 9,060 | 9,061
Loans receivable, net | 3,650,557 | 3,571,078
Accrued interest receivable | 23,642 | 18,871
Financial liabilities |  |
Deposits | 3,841,126 | 3,725,540
Advances from FHLB | 114,026 | 133,514
Accrued interest payable | 7,101 | 4,723
Subordinated debt | 23,118 | 23,105
Unrecognized financial instruments (net of contract amount) |  |
Commitments to originate loans | 0 |
Letters of credit | 0 |
Lines of credit | 0 |
Fair Value, Inputs, Level 1 |  |
Financial assets |  |
Cash and cash equivalents | 88,193 | 53,979
Financial liabilities |  |
Deposits | 2,562,664 | 2,661,479
Fair Value, Inputs, Level 2 |  |
Financial assets |  |
Interest-bearing time deposits | 987 | 1,242
Stock in FHLB | 10,900 | 11,540
Stock in Federal Reserve Bank of St. Louis | 9,060 | 9,061
Accrued interest receivable | 23,642 | 18,871
Financial liabilities |  |
Advances from FHLB | 111,439 | 131,821
Accrued interest payable | 7,101 | 4,723
Fair Value, Inputs, Level 3 |  |
Financial assets |  |
Loans receivable, net | 3,408,166 | 3,393,791
Financial liabilities |  |
Deposits | 1,263,342 | 1,053,650
Subordinated debt | $ 20,845 | $ 20,318

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