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Investment Securities (Tables) | 6 Months Ended
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Dec. 31, 2023
Investment Securities |
Schedule of available-for-sale securities reconciliation | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  | ​ |  | Gross |  | Gross |  | Estimated |  | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair | ​ | Carrying
December 31, 2023 | ​ | Cost | ​ | Gains | ​ | (Losses) | ​ | Value | ​ | Value
(In Thousands) |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Held to maturity |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
U.S. government sponsored enterprise MBS(1) | ​ | $ | 137,205 | ​ | $ | 63 | ​ | $ | (15,061) | ​ | $ | 122,207 | ​ | $ | 137,205
U.S. government sponsored enterprise CMO(2) | ​ | ​ | 3,857 | ​ | ​ | — | ​ | ​ | (256) | ​ | ​ | 3,601 | ​ | ​ | 3,857
U.S. SBA securities(3) | ​ |  | 630 | ​ |  | — | ​ |  | (1) | ​ |  | 629 | ​ |  | 630
Total investment securities - held to maturity | ​ | ​ | 141,692 | ​ | ​ | 63 | ​ | ​ | (15,318) | ​ | ​ | 126,437 | ​ | ​ | 141,692
​ | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
Available for sale | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
U.S. government agency MBS | ​ | ​ | 1,328 | ​ | ​ | — | ​ | ​ | (14) | ​ | ​ | 1,314 | ​ | ​ | 1,314
U.S. government sponsored enterprise MBS | ​ | ​ | 587 | ​ | ​ | 1 | ​ | ​ | (4) | ​ | ​ | 584 | ​ |  | 584
Private issue CMO | ​ |  | 99 | ​ |  | — | ​ |  | (1) | ​ |  | 98 | ​ |  | 98
Total investment securities - available for sale | ​ | ​ | 2,014 | ​ | ​ | 1 | ​ | ​ | (19) | ​ | ​ | 1,996 | ​ | ​ | 1,996
Total investment securities | ​ | $ | 143,706 | ​ | $ | 64 | ​ | $ | (15,337) | ​ | $ | 128,433 | ​ | $ | 143,688
​ (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
Schedule of investments with unrealized loss position | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of December 31, 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 | ​ | $ | — | ​ | $ | — | ​ | $ | 117,410 | ​ | $ | 15,061 | ​ | $ | 117,410 | ​ | $ | 15,061
U.S. government sponsored enterprise CMO | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 3,601 | ​ | ​ | 256 | ​ | ​ | 3,601 | ​ | ​ | 256
U.S. SBA securities | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 629 | ​ | ​ | 1 | ​ | ​ | 629 | ​ | ​ | 1
Total investment securities - held to maturity | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 121,640 | ​ | ​ | 15,318 | ​ | ​ | 121,640 | ​ | ​ | 15,318
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for sale | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S government agency MBS | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,216 | ​ | ​ | 14 | ​ | ​ | 1,216 | ​ | ​ | 14
U.S. government sponsored enterprise MBS | ​ | ​ | 61 | ​ | ​ | 1 | ​ | ​ | 444 | ​ | ​ | 3 | ​ | ​ | 505 | ​ | ​ | 4
Private issue CMO | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 98 | ​ | ​ | 1 | ​ | ​ | 98 | ​ | ​ | 1
Total investment securities - available for sale | ​ | ​ | 61 | ​ | ​ | 1 | ​ | ​ | 1,758 | ​ | ​ | 18 | ​ | ​ | 1,819 | ​ | ​ | 19
Total investment securities | ​ | $ | 61 | ​ | $ | 1 | ​ | ​ | 123,398 | ​ | $ | 15,336 | ​ | $ | 123,459 | ​ | $ | 15,337
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
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
Schedule of investments classified by contractual maturity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2023 | ​ | June 30, 2023
​ |  | ​ | ​ |  | Estimated |  | ​ | ​ |  | Estimated
​ | ​ | Amortized | ​ | Fair | ​ | Amortized | ​ | Fair
(In Thousands) | ​ | Cost | ​ | Value | ​ | Cost | ​ | Value
Held to maturity |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Due in one year or less | ​ | $ | 21 | ​ | $ | 21 | ​ | $ | 303 | ​ | $ | 300
Due after one through five years | ​ |  | 6,061 | ​ |  | 5,868 | ​ |  | 7,686 | ​ |  | 7,365
Due after five through ten years | ​ |  | 54,946 | ​ |  | 50,341 | ​ |  | 61,043 | ​ |  | 54,686
Due after ten years | ​ |  | 80,664 | ​ |  | 70,207 | ​ |  | 85,305 | ​ |  | 73,190
Total investment securities - held to maturity | ​ | ​ | 141,692 | ​ | ​ | 126,437 | ​ | ​ | 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 | ​ |  | 626 | ​ |  | 621 | ​ |  | 590 | ​ |  | 580
Due after ten years | ​ |  | 1,388 | ​ |  | 1,375 | ​ |  | 1,627 | ​ |  | 1,575
Total investment securities - available for sale | ​ | ​ | 2,014 | ​ | ​ | 1,996 | ​ | ​ | 2,217 | ​ | ​ | 2,155
Total investment securities | ​ | $ | 143,706 | ​ | $ | 128,433 | ​ | $ | 156,554 | ​ | $ | 137,696
​

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