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Investment Securities (Tables) | 6 Months Ended
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Jun. 30, 2025
Investment Securities |
Summary of amortized cost and fair value of securities available-for-sale | Investment securities available for sale (AFS): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2025
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | Allowance | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Unrealized | ​ | Unrealized | ​ | For Credit | ​ | Fair
​ |  | Cost Basis |  | Gains |  | Losses | ​ | Losses |  | Value
​ | ​ | (In Thousands)
U.S. Agency | ​ | $ | 5,256 | ​ | $ | — | ​ | $ | (484) | ​ | $ | — | ​ | $ | 4,772
U.S. Agency mortgage-backed securities | ​ |  | 113,795 | ​ |  | 422 | ​ |  | (10,687) | ​ | ​ | — | ​ |  | 103,530
Municipal | ​ |  | 11,447 | ​ |  | 44 | ​ |  | (475) | ​ | ​ | — | ​ |  | 11,016
Corporate bonds | ​ |  | 53,315 | ​ |  | 170 | ​ |  | (2,038) | ​ | ​ | (1,000) | ​ |  | 50,447
Total | ​ | $ | 183,813 | ​ | $ | 636 | ​ | $ | (13,684) | ​ | $ | (1,000) | ​ | $ | 169,765
Investment securities available for sale (AFS): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2024
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | Allowance | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Unrealized | ​ | Unrealized | ​ | For Credit | ​ | Fair
​ |  | Cost Basis |  | Gains |  | Losses | ​ | Losses |  | Value
​ | ​ | (In Thousands)
U.S. Agency | ​ | $ | 5,345 | ​ | $ | — | ​ | $ | (679) | ​ | $ | — | ​ | $ | 4,666
U.S. Agency mortgage-backed securities | ​ |  | 104,227 | ​ |  | 90 | ​ |  | (12,783) | ​ | ​ | — | ​ |  | 91,534
Municipal | ​ |  | 9,031 | ​ |  | 2 | ​ |  | (670) | ​ | ​ | — | ​ |  | 8,363
Corporate bonds | ​ |  | 54,254 | ​ |  | 94 | ​ |  | (2,931) | ​ | ​ | (360) | ​ |  | 51,057
Total | ​ | $ | 172,857 | ​ | $ | 186 | ​ | $ | (17,063) | ​ | $ | (360) | ​ | $ | 155,620
Summary of amortized cost and fair value of securities held-to-maturity | Investment securities held to maturity (HTM): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2025
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​ | ​ | Allowance
​ | ​ | ​ | ​ | ​ | Unrealized | ​ | Unrealized | ​ | Fair | ​ | For Credit
​ |  | Cost Basis |  | Gains |  | Losses | ​ | Value |  | Losses
​ | ​ | (In Thousands)
U.S. Agency | ​ | $ | 2,500 | ​ | $ | — | ​ | $ | (281) | ​ | $ | 2,219 | ​ | $ | —
U.S. Agency mortgage-backed securities | ​ | ​ | 31,552 | ​ | ​ | 64 | ​ | ​ | (2,060) | ​ | ​ | 29,556 | ​ | ​ | —
Municipal | ​ |  | 30,088 | ​ |  | 2 | ​ |  | (1,819) | ​ |  | 28,271 | ​ |  | (2)
Corporate bonds and other securities | ​ |  | 3,415 | ​ |  | — | ​ |  | (181) | ​ |  | 3,234 | ​ |  | (83)
Total | ​ | $ | 67,555 | ​ | $ | 66 | ​ | $ | (4,341) | ​ | $ | 63,280 | ​ | $ | (85)
Investment securities held to maturity (HTM): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2024
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​ | ​ | Allowance
​ | ​ | ​ | ​ | ​ | Unrealized | ​ | Unrealized | ​ | Fair | ​ | For Credit
​ | ​ | Cost Basis |  | Gains |  | Losses | ​ | Value |  | Losses
​ | ​ | (In Thousands)
U.S. Agency |  | $ | 2,500 | ​ | $ | — | ​ | $ | (365) | ​ | $ | 2,135 | ​ | $ | —
U.S. Agency mortgage-backed securities |  | ​ | 26,966 | ​ | ​ | 28 | ​ | ​ | (2,403) | ​ | ​ | 24,591 | ​ | ​ | —
Municipal | ​ |  | 30,959 | ​ |  | — | ​ |  | (2,553) | ​ |  | 28,406 | ​ |  | (2)
Corporate bonds and other securities | ​ |  | 3,412 | ​ |  | — | ​ |  | (73) | ​ |  | 3,339 | ​ |  | (87)
Total | ​ | $ | 63,837 | ​ | $ | 28 | ​ | $ | (5,394) | ​ | $ | 58,471 | ​ | $ | (89)
Schedule of investment securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2025
​ | ​ | Available for sale | ​ | Held to maturity
​ |  | Cost Basis |  | Fair Value |  | Cost Basis |  | Fair Value
Within 1 year | ​ | $ | 13,436 | ​ | $ | 13,359 | ​ | $ | 1,650 | ​ | $ | 1,647
After 1 year but within 5 years | ​ |  | 25,467 | ​ |  | 23,997 | ​ |  | 16,118 | ​ |  | 15,774
After 5 years but within 10 years | ​ |  | 35,245 | ​ |  | 32,982 | ​ |  | 19,020 | ​ |  | 17,098
Over 10 years | ​ |  | 109,665 | ​ |  | 99,427 | ​ |  | 30,767 | ​ |  | 28,761
Total | ​ | $ | 183,813 | ​ | $ | 169,765 | ​ | $ | 67,555 | ​ | $ | 63,280
Schedule of investments with unrealized losses | The following tables summarize the available for sale debt securities in an unrealized loss position for which an allowance for credit losses has not been recorded as of June 30, 2025 and December 31, 2024, aggregated by security type and length of time in a continuous loss position (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2025
​ | ​ | Less Than 12 Months | ​ | 12 Months or Longer | ​ | Total
​ | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized
​ |  | Value |  | Losses |  | Value |  | Losses |  | Value |  | Losses
U.S. Agency | ​ | $ | — | ​ | $ | — | ​ | $ | 4,772 | ​ | $ | (484) | ​ | $ | 4,772 | ​ | $ | (484)
U.S. Agency mortgage-backed securities | ​ | ​ | 8,599 | ​ | ​ | (100) | ​ | ​ | 60,829 | ​ | ​ | (10,587) | ​ | ​ | 69,428 | ​ | ​ | (10,687)
Municipal | ​ |  | — | ​ | ​ | — | ​ | ​ | 7,744 | ​ | ​ | (475) | ​ | ​ | 7,744 | ​ | ​ | (475)
Corporate bonds | ​ |  | 4,670 | ​ | ​ | (514) | ​ | ​ | 29,293 | ​ | ​ | (1,524) | ​ | ​ | 33,963 | ​ | ​ | (2,038)
Total | ​ | $ | 13,269 | ​ | $ | (614) | ​ | $ | 102,638 | ​ | $ | (13,070) | ​ | $ | 115,907 | ​ | $ | (13,684)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2024
​ | ​ | Less Than 12 Months | ​ | 12 Months or Longer | ​ | Total
​ | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized
​ |  | Value |  | Losses |  | Value |  | Losses |  | Value |  | Losses
U.S. Agency | ​ | $ | — | ​ | $ | — | ​ | $ | 4,666 | ​ | $ | (679) | ​ | $ | 4,666 | ​ | $ | (679)
U.S. Agency mortgage-backed securities | ​ | ​ | 16,104 | ​ | ​ | (275) | ​ | ​ | 63,323 | ​ | ​ | (12,508) | ​ | ​ | 79,427 | ​ | ​ | (12,783)
Municipal | ​ |  | — | ​ | ​ | — | ​ | ​ | 8,121 | ​ | ​ | (670) | ​ | ​ | 8,121 | ​ | ​ | (670)
Corporate bonds | ​ |  | 9,500 | ​ | ​ | (675) | ​ | ​ | 34,612 | ​ | ​ | (2,256) | ​ | ​ | 44,112 | ​ | ​ | (2,931)
Total | ​ | $ | 25,604 | ​ | $ | (950) | ​ | $ | 110,722 | ​ | $ | (16,113) | ​ | $ | 136,326 | ​ | $ | (17,063)
Schedule of allowance for credit losses on available for sale debt securities | The following tables present the activity in the allowance for credit losses on available for sale debt securities by major security type for the three and six months ended June 30, 2025 and 2024 (in thousands).
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended June 30, 2025
​ | ​ | Balance at March 31, 2025 | ​ | Charge-Offs | ​ | Recoveries | ​ | Provision (Recovery) | ​ | Balance at June 30, 2025
Corporate bonds | ​ | $ | 1,000 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 1,000
Total | ​ | $ | 1,000 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 1,000
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended June 30, 2024
​ | ​ | Balance at March 31, 2024 | ​ | Charge-Offs | ​ | Recoveries | ​ | Provision (Recovery) | ​ | Balance at June 30, 2024
Corporate bonds | ​ | $ | 116 | ​ | $ | — | ​ | $ | — | ​ | $ | 244 | ​ | $ | 360
Total | ​ | $ | 116 | ​ | $ | — | ​ | $ | — | ​ | $ | 244 | ​ | $ | 360
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six months ended June 30, 2025
​ | ​ | Balance at December 31, 2024 | ​ | Charge-Offs | ​ | Recoveries | ​ | Provision (Recovery) | ​ | Balance at June 30, 2025
Corporate bonds | ​ | $ | 360 | ​ | $ | — | ​ | $ | — | ​ | $ | 640 | ​ | $ | 1,000
Total | ​ | $ | 360 | ​ | $ | — | ​ | $ | — | ​ | $ | 640 | ​ | $ | 1,000
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six months ended June 30, 2024
​ | ​ | Balance at December 31, 2023 | ​ | Charge-Offs | ​ | Recoveries | ​ | Provision (Recovery) | ​ | Balance at June 30, 2024
Corporate bonds | ​ | $ | 926 | ​ | $ | (491) | ​ | $ | — | ​ | $ | (75) | ​ | $ | 360
Total | ​ | $ | 926 | ​ | $ | (491) | ​ | $ | — | ​ | $ | (75) | ​ | $ | 360
Schedule of allowance for credit losses on held to maturity debt securities | The following tables present the activity in the allowance for credit losses on held to maturity debt securities by major security type for the three and six months ended June 30, 2025 and 2024 (in thousands).
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended June 30, 2025
​ | ​ | Balance at March 31, 2025 | ​ | Charge-Offs | ​ | Recoveries | ​ | Provision (Recovery) | ​ | Balance at June 30, 2025
Municipal | ​ | $ | 1 | ​ | $ | — | ​ | $ | — | ​ | $ | 1 | ​ | $ | 2
Corporate bonds and other securities | ​ | ​ | 95 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (12) | ​ | ​ | 83
Total | ​ | $ | 96 | ​ | $ | — | ​ | $ | — | ​ | $ | (11) | ​ | $ | 85
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended June 30, 2024
​ | ​ | Balance at March 31, 2024 | ​ | Charge-Offs | ​ | Recoveries | ​ | Provision (Recovery) | ​ | Balance at June 30, 2024
Municipal | ​ | $ | 2 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 2
Corporate bonds and other securities | ​ | ​ | 88 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 10 | ​ | ​ | 98
Total | ​ | $ | 90 | ​ | $ | — | ​ | $ | — | ​ | $ | 10 | ​ | $ | 100
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six months ended June 30, 2025
​ | ​ | Balance at December 31, 2024 | ​ | Charge-Offs | ​ | Recoveries | ​ | Provision (Recovery) | ​ | Balance at June 30, 2025
Municipal | ​ | $ | 2 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 2
Corporate bonds and other securities | ​ | ​ | 87 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (4) | ​ | ​ | 83
Total | ​ | $ | 89 | ​ | $ | — | ​ | $ | — | ​ | $ | (4) | ​ | $ | 85
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Six months ended June 30, 2024
​ | ​ | Balance at December 31, 2023 | ​ | Charge-Offs | ​ | Recoveries | ​ | Provision (Recovery) | ​ | Balance at June 30, 2024
Municipal | ​ | $ | 2 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 2
Corporate bonds and other securities | ​ | ​ | 35 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 63 | ​ | ​ | 98
Total | ​ | $ | 37 | ​ | $ | — | ​ | $ | — | ​ | $ | 63 | ​ | $ | 100
​
Schedule of amortized cost of held to maturity debt securities aggregated by credit quality indicator | Specifically, the following table summarizes the amortized cost of held to maturity debt securities at June 30, 2025, aggregated by credit quality indicator (in thousands).
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2025
​ | ​ | Credit Rating
​ | ​ | AAA/AA/A | ​ | BBB/BB/B | ​ | Unrated | ​ | Total
U.S. Agency |  | $ | 2,500 | ​ | $ | — |  | $ | — |  | $ | 2,500
U.S. Agency mortgage-backed securities | ​ | ​ | 31,552 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 31,552
Municipal | ​ | ​ | 30,088 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 30,088
Corporate bonds and other securities | ​ | ​ | 2,000 | ​ | ​ | — | ​ | ​ | 1,415 | ​ | ​ | 3,415
Total | ​ | $ | 66,140 | ​ | $ | — | ​ | $ | 1,415 | ​ | $ | 67,555
Schedule of trading securities at estimated fair value | ​ The following table presents the Company’s trading securities, at estimated fair value (in thousands). ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2025 | ​ | December 31, 2024
U.S. Treasury | ​ | $ | 997 | ​ | $ | —
Municipal |  | ​ | 3,208 | ​ | ​ | —
Total | ​ | $ | 4,205 | ​ | $ | —
​
Schedule of net gain on trading securities included in trading securities revenue | The following table presents the net gain on trading securities included in trading securities revenue for the three- and six-month periods ending June 30, 2025 and 2024 (in thousands).
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three months ended |  | Six months ended
​ |  | June 30, | ​ | June 30,
​ | ​ | 2025 |  | 2024 |  | 2025 |  | 2024
Net realized gain on sales | ​ | $ | 38 | ​ | $ | — | ​ | $ | 38 | ​ | $ | —
Net unrealized gain | ​ |  | 35 | ​ |  | — | ​ |  | 35 | ​ |  | —
Net gain on trading securities | ​ |  | 73 | ​ |  | — | ​ |  | 73 | ​ |  | —
Less: Portfolio expenses and management fees | ​ |  | 38 | ​ |  | — | ​ |  | 38 | ​ |  | —
Trading securities revenue | ​ | $ | 35 | ​ | $ | — | ​ | $ | 35 | ​ | $ | —
​

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