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Investment Securities | 12 Months Ended
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Jun. 30, 2024
Investment Securities |
Investment Securities | Note 2: Investment Securities ​ The amortized cost and estimated fair value of investment securities as of June 30, 2024 and 2023 were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  | ​ |  | Gross |  | Gross |  | Estimated |  | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair | ​ | Carrying
June 30, 2024 | ​ | Cost | ​ | Gains | ​ | (Losses) | ​ | Value | ​ | Value
(In Thousands) |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Held to maturity |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
U.S. government sponsored enterprise MBS(1) | ​ | $ | 125,883 | ​ | $ | 76 | ​ | $ | (15,481) | ​ | $ | 110,478 | ​ | $ | 125,883
U.S. government sponsored enterprise CMO(2) | ​ | ​ | 3,713 | ​ | ​ | — | ​ | ​ | (253) | ​ | ​ | 3,460 | ​ | ​ | 3,713
U.S. SBA securities(3) | ​ |  | 455 | ​ |  | — | ​ |  | — | ​ |  | 455 | ​ |  | 455
Total investment securities - held to maturity | ​ | ​ | 130,051 | ​ | ​ | 76 | ​ | ​ | (15,734) | ​ | ​ | 114,393 | ​ | ​ | 130,051
​ | ​ |  |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Available for sale | ​ |  |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
U.S. government agency MBS(1) | ​ | ​ | 1,222 | ​ | ​ | — | ​ | ​ | (14) | ​ | ​ | 1,208 | ​ | ​ | 1,208
U.S. government sponsored enterprise MBS(1) | ​ |  | 548 | ​ | ​ | 5 | ​ | ​ | — | ​ | ​ | 553 | ​ | ​ | 553
Private issue CMO(2) | ​ |  | 91 | ​ | ​ | — | ​ | ​ | (3) | ​ | ​ | 88 | ​ | ​ | 88
Total investment securities - available for sale | ​ | ​ | 1,861 | ​ | ​ | 5 | ​ | ​ | (17) | ​ | ​ | 1,849 | ​ | ​ | 1,849
Total investment securities | ​ | $ | 131,912 | ​ | $ | 81 | ​ | $ | (15,751) | ​ | $ | 116,242 | ​ | $ | 131,900
​
(1) | Mortgage-backed securities (“MBS”).
(2) | Collateralized mortgage obligations (“CMO”).
(3) | Small Business Administration ("SBA").
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  | ​ |  | Gross |  | Gross |  | Estimated |  | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair | ​ | Carrying
June 30, 2023 | ​ | Cost | ​ | Gains | ​ | (Losses) | ​ | Value | ​ | Value
(In Thousands) |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Held to maturity |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
U.S. government sponsored enterprise MBS | ​ | $ | 149,803 | ​ | $ | — | ​ | $ | (18,459) | ​ | $ | 131,344 | ​ | $ | 149,803
U.S. government sponsored enterprise CMO | ​ | ​ | 3,883 | ​ | ​ | — | ​ | ​ | (336) | ​ | ​ | 3,547 | ​ | ​ | 3,883
U.S. SBA securities | ​ |  | 651 | ​ |  | — | ​ |  | (1) | ​ |  | 650 | ​ |  | 651
Total investment securities - held to maturity | ​ | ​ | 154,337 | ​ | ​ | — | ​ | ​ | (18,796) | ​ | ​ | 135,541 | ​ | ​ | 154,337
​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Available for sale | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
U.S. government agency MBS | ​ | ​ | 1,417 | ​ | ​ | — | ​ | ​ | (47) | ​ | ​ | 1,370 | ​ | ​ | 1,370
U.S. government sponsored enterprise MBS | ​ | ​ | 697 | ​ | ​ | — | ​ | ​ | (14) | ​ | ​ | 683 | ​ | ​ | 683
Private issue CMO | ​ | ​ | 103 | ​ | ​ | — | ​ | ​ | (1) | ​ | ​ | 102 | ​ | ​ | 102
Total investment securities - available for sale | ​ | ​ | 2,217 | ​ | ​ | — | ​ | ​ | (62) | ​ | ​ | 2,155 | ​ | ​ | 2,155
Total investment securities | ​ | $ | 156,554 | ​ | $ | — | ​ | $ | (18,858) | ​ | $ | 137,696 | ​ | $ | 156,492
​ In fiscal 2024 and 2023, the Corporation received principal payments from its investment securities of $24.1 million and $30.7 million, respectively and did not sell any investment securities. The Corporation did not purchase any investment securities in fiscal 2024 and 2023. As of June 30, 2024 and 2023, the Corporation held investments with an unrealized loss position of $15.8 million and $18.9 million, respectively. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of June 30, 2024 | ​ | Unrealized Holding Losses | ​ | Unrealized Holding Losses | ​ | Unrealized Holding Losses
(In Thousands) | ​ | Less Than 12 Months | ​ | 12 Months or More | ​ | Total
​ | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized
Description of Securities |  | Value |  | Losses |  | Value |  | Losses |  | Value |  | Losses
Held to maturity | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government sponsored enterprise MBS | ​ | $ | — | ​ | $ | — | ​ | $ | 105,530 | ​ | $ | 15,481 | ​ | $ | 105,530 | ​ | $ | 15,481
U.S. government sponsored enterprise CMO | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 3,460 | ​ | ​ | 253 | ​ | ​ | 3,460 | ​ | ​ | 253
U.S. SBA securities | ​ | ​ | 455 | ​ | $ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 455 | ​ | ​ | —
Total investment securities - held to maturity | ​ | ​ | 455 | ​ | ​ | — | ​ | ​ | 108,990 | ​ | ​ | 15,734 | ​ | ​ | 109,445 | ​ | ​ | 15,734
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for sale | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S government agency MBS | ​ | ​ | 91 | ​ | ​ | — | ​ | ​ | 1,117 | ​ | ​ | 14 | ​ | ​ | 1,208 | ​ | ​ | 14
U.S. government sponsored enterprise MBS | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 8 | ​ | ​ | — | ​ | ​ | 8 | ​ | ​ | —
Private issue CMO | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 88 | ​ | ​ | 3 | ​ | ​ | 88 | ​ | ​ | 3
Total investment securities - available for sale | ​ | ​ | 91 | ​ | ​ | — | ​ | ​ | 1,213 | ​ | ​ | 17 | ​ | ​ | 1,304 | ​ | ​ | 17
Total investment securities | ​ | $ | 546 | ​ | $ | — | ​ | $ | 110,203 | ​ | $ | 15,751 | ​ | $ | 110,749 | ​ | $ | 15,751
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of June 30, 2023 | ​ | Unrealized Holding Losses | ​ | Unrealized Holding Losses | ​ | Unrealized Holding Losses
(In Thousands) | ​ | Less Than 12 Months | ​ | 12 Months or More | ​ | Total
​ | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized
Description of Securities |  | Value |  | Losses |  | Value |  | Losses |  | Value |  | Losses
Held to maturity | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. government sponsored enterprise MBS | ​ | $ | 10,839 | ​ | $ | 253 | ​ | $ | 120,506 | ​ | $ | 18,206 | ​ | $ | 131,345 | ​ | $ | 18,459
U.S. government sponsored enterprise CMO | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 3,547 | ​ | ​ | 336 | ​ | ​ | 3,547 | ​ | ​ | 336
U.S. SBA securities | ​ | ​ | 650 | ​ | ​ | 1 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 650 | ​ | ​ | 1
Total investment securities - held to maturity | ​ | ​ | 11,489 | ​ | ​ | 254 | ​ | ​ | 124,053 | ​ | ​ | 18,542 | ​ | ​ | 135,542 | ​ | ​ | 18,796
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for sale | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S government agency MBS | ​ | ​ | 696 | ​ | ​ | 20 | ​ | ​ | 673 | ​ | ​ | 27 | ​ | ​ | 1,369 | ​ | ​ | 47
U.S. government sponsored enterprise MBS | ​ | ​ | 87 | ​ | ​ | 2 | ​ | ​ | 558 | ​ | ​ | 12 | ​ | ​ | 645 | ​ | ​ | 14
Private issue CMO | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 102 | ​ | ​ | 1 | ​ | ​ | 102 | ​ | ​ | 1
Total investment securities - available for sale | ​ | ​ | 783 | ​ | ​ | 22 | ​ | ​ | 1,333 | ​ | ​ | 40 | ​ | ​ | 2,116 | ​ | ​ | 62
Total investment securities | ​ | $ | 12,272 | ​ | $ | 276 | ​ | $ | 125,386 | ​ | $ | 18,582 | ​ | $ | 137,658 | ​ | $ | 18,858
​ The Corporation evaluates individual investment securities quarterly for impairment based on ASC 326 since the adoption on July 1, 2023. At June 30, 2024, all of the $15.8 million of unrealized holding losses were in a loss position for 12 months or more, while at June 30, 2023, $18.6 million of the $18.9 million of unrealized holding losses were in a loss position for 12 months or more. The unrealized losses on investment securities were attributable to changes in interest rates relative to when the investment securities were purchased and not due to the credit quality of the investment securities, which are predominately U.S. government sponsored enterprise (GSE) securities that are either explicitly or implicitly guaranteed by the U.S. government and have a long history of no credit losses. Therefore, the Corporation has determined that the unrealized losses are due to the fluctuating nature of interest rates, and not related to any potential credit risks within the investment portfolio. The Bank does not currently intend to sell any investment securities classified as held to maturity or available for sale and as such, records the investment security at amortized cost or fair market value as prescribed by GAAP. As a part of the Corporation’s monthly risk assessment, the Corporation runs a number of stressed liquidity scenarios to determine if it is more likely than not that the Bank will be required to sell the investment security before the recovery of its amortized costs basis. These liquidity scenarios support the Corporation’s assessment that the Corporation has the ability to hold these held to maturity securities until maturity or available for sale securities until recovery of the amortized costs is realized and it is not more likely than not that the Corporation will be required to sell the securities prior to recovery of the amortized costs. There were no ACL or impairment on investment securities held to maturity and there was no impairment on investment securities available for sale at the adoption date of ASC 326 on July 1, 2023 and at June 30, 2024. ​ In order to maintain adequate liquidity, the Bank has established borrowing facilities with various counterparties. The Bank had a remaining borrowing capacity of $261.3 million as of June 30, 2024 at the FHLB of San Francisco. In addition, the Bank has secured an estimated $208.6 million discount window facility at the FRB of San Francisco collateralized by investment securities totaling $126.6 million and loans held for investment totaling $178.6 million as of June 30, 2024. As of June 30, 2024, the Bank also has an unsecured borrowing arrangement in the form of a federal funds facility with its correspondent bank for $50.0 million. The Bank had no advances under the Federal Reserve discount window or correspondent bank facility as of June 30, 2024. The total available borrowing capacity across all sources totaled approximately $519.9 million at June 30, 2024. ​ At June 30, 2023, the Bank had a remaining borrowing capacity of $287.9 million at the FHLB of San Francisco. In addition, the Bank had secured an estimated $139.0 million discount window facility at the FRB of San Francisco collateralized by investment securities totaling $150.3 million at June 30, 2023. As of June 30, 2023, the Bank also had an unsecured borrowing arrangement in the form of a federal funds facility with its correspondent bank for $50.0 million. The Bank had no advances under the Federal Reserve discount window or the correspondent bank facility as of June 30, 2023. The total available borrowing capacity across all sources totaled approximately $476.9 million at June 30, 2023. ​ At June 30, 2024 and 2023, the Corporation did not hold any investment securities held to maturity or investment securities available for sale with the intent to sell and determined it had the ability to hold these investment securities until maturity. It also determined that it was more likely than not that the Corporation would not be required to sell the securities prior to recovery of the amortized cost basis; therefore, no impairment losses were recorded on investment securities available for sale for fiscal years ended June 30, 2024 and 2023. In addition, no allowance for credit losses were recorded on investment securities held to maturity for the fiscal years ended June 30, 2024 and 2023. ​ Contractual maturities of investment securities as of June 30, 2024 and 2023 were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2024 | ​ | June 30, 2023
​ |  | ​ | ​ |  | Estimated |  | ​ | ​ |  | Estimated
​ | ​ | Amortized | ​ | Fair | ​ | Amortized | ​ | Fair
(In Thousands) | ​ | Cost | ​ | Value | ​ | Cost | ​ | Value
Held to maturity |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Due in one year or less | ​ | $ | 349 | ​ | $ | 343 | ​ | $ | 303 | ​ | $ | 300
Due after one through five years | ​ |  | 4,328 | ​ |  | 4,167 | ​ |  | 7,686 | ​ |  | 7,365
Due after five through ten years | ​ |  | 49,331 | ​ |  | 44,830 | ​ |  | 61,043 | ​ |  | 54,686
Due after ten years | ​ |  | 76,043 | ​ |  | 65,053 | ​ |  | 85,305 | ​ |  | 73,190
Total investment securities - held to maturity | ​ | ​ | 130,051 | ​ | ​ | 114,393 | ​ | ​ | 154,337 | ​ | ​ | 135,541
​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Available for sale | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
Due in one year or less | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Due after one through five years | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Due after five through ten years | ​ | ​ | 1,055 | ​ | ​ | 1,053 | ​ | ​ | 590 | ​ | ​ | 580
Due after ten years | ​ | ​ | 806 | ​ | ​ | 796 | ​ | ​ | 1,627 | ​ | ​ | 1,575
Total investment securities - available for sale | ​ | ​ | 1,861 | ​ | ​ | 1,849 | ​ | ​ | 2,217 | ​ | ​ | 2,155
Total investment securities | ​ | $ | 131,912 | ​ | $ | 116,242 | ​ | $ | 156,554 | ​ | $ | 137,696
​ ​ ​

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