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INVESTMENT SECURITIES (Tables) | 12 Months Ended
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Dec. 31, 2024
INVESTMENT SECURITIES |
Summary of amortized cost and fair value of securities available-for-sale | Investment securities available for sale: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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
Investment securities available for sale: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | DECEMBER 31, 2023
​ | ​ | ​ | ​ | ​ | GROSS | ​ | GROSS | ​ | ALLOWANCE | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | UNREALIZED | ​ | UNREALIZED | ​ | FOR CREDIT | ​ | FAIR
​ |  | COST BASIS |  | GAINS |  | LOSSES | ​ | LOSSES |  | VALUE
​ | ​ | (IN THOUSANDS)
U.S. Agency | ​ | $ | 6,035 | ​ | $ | — | ​ | $ | (696) | ​ | $ | — | ​ | $ | 5,339
U.S. Agency mortgage-backed securities | ​ |  | 104,820 | ​ |  | 179 | ​ |  | (11,924) | ​ | ​ | — | ​ |  | 93,075
Municipal | ​ |  | 11,159 | ​ |  | 1 | ​ |  | (800) | ​ | ​ | — | ​ |  | 10,360
Corporate bonds | ​ |  | 62,004 | ​ |  | 46 | ​ |  | (4,187) | ​ | ​ | (926) | ​ |  | 56,937
Total | ​ | $ | 184,018 | ​ | $ | 226 | ​ | $ | (17,607) | ​ | $ | (926) | ​ | $ | 165,711
Summary of amortized cost and fair value of securities held-to-maturity | Investment securities held to maturity: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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)
Investment securities held to maturity: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | DECEMBER 31, 2023
​ | ​ | ​ | ​ | ​ | GROSS | ​ | GROSS | ​ | ​ | ​ | ​ | ALLOWANCE
​ | ​ | ​ | ​ | ​ | UNREALIZED | ​ | UNREALIZED | ​ | FAIR | ​ | FOR CREDIT
​ | ​ | COST BASIS |  | GAINS |  | LOSSES | ​ | VALUE |  | LOSSES
​ | ​ | (IN THOUSANDS)
U.S. Agency |  | $ | 2,500 | ​ | $ | — | ​ | $ | (379) | ​ | $ | 2,121 | ​ | $ | —
U.S. Agency mortgage-backed securities |  | ​ | 24,222 | ​ | ​ | 49 | ​ | ​ | (2,058) | ​ | ​ | 22,213 | ​ | ​ | —
Municipal | ​ |  | 32,787 | ​ |  | — | ​ |  | (2,797) | ​ |  | 29,990 | ​ |  | (2)
Corporate bonds and other securities | ​ |  | 4,470 | ​ |  | — | ​ |  | (173) | ​ |  | 4,297 | ​ |  | (35)
Total | ​ | $ | 63,979 | ​ | $ | 49 | ​ | $ | (5,407) | ​ | $ | 58,621 | ​ | $ | (37)
Schedule of investment securities | Investment securities available for sale: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | AT DECEMBER 31, 2024
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | TOTAL
​ |  | ​ | ​ |  | ​ | ​ |  | ​ | ​ |  | U.S. AGENCY | ​ | INVESTMENT
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | MORTGAGE- | ​ | SECURITIES
​ | ​ | ​ | ​ | ​ | ​ | CORPORATE | ​ | BACKED | ​ | AVAILABLE
​ | ​ | U. S. AGENCY | ​ | MUNICIPAL | ​ | BONDS | ​ | SECURITIES | ​ | FOR SALE
​ | ​ | (IN THOUSANDS)
COST BASIS |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Within 1 year | ​ | $ | — |  | $ | 2,703 |  | $ | 5,500 |  | $ | 850 | ​ | $ | 9,053
After 1 year but within 5 years | ​ |  | 2,136 |  |  | 2,389 |  |  | 24,129 |  |  | 408 | ​ |  | 29,062
After 5 years but within 10 years | ​ |  | 2,000 |  |  | 3,939 |  |  | 23,975 |  |  | 5,020 | ​ |  | 34,934
Over 10 years | ​ |  | 1,209 |  |  | — |  |  | 650 |  |  | 97,949 | ​ |  | 99,808
Total | ​ | $ | 5,345 |  | $ | 9,031 |  | $ | 54,254 |  | $ | 104,227 | ​ | $ | 172,857
FAIR VALUE | ​ |  |  |  |  |  |  |  |  |  |  |  |  |  |
Within 1 year | ​ | $ | — |  | $ | 2,674 |  | $ | 5,478 | ​ | $ | 843 | ​ | $ | 8,995
After 1 year but within 5 years | ​ |  | 1,915 |  |  | 2,284 |  |  | 23,330 | ​ |  | 397 | ​ |  | 27,926
After 5 years but within 10 years | ​ |  | 1,687 |  |  | 3,405 |  |  | 21,690 | ​ |  | 4,782 | ​ |  | 31,564
Over 10 years | ​ |  | 1,064 |  |  | — |  |  | 559 | ​ |  | 85,512 | ​ |  | 87,135
Total | ​ | $ | 4,666 |  | $ | 8,363 |  | $ | 51,057 | ​ | $ | 91,534 | ​ | $ | 155,620
​ Investment securities held to maturity:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | AT DECEMBER 31, 2024
​ |  | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ | ​ | TOTAL
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | U.S. AGENCY | ​ | INVESTMENT
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | CORPORATE | ​ | MORTGAGE- | ​ | SECURITIES
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | BONDS AND | ​ | BACKED | ​ | HELD TO
​ | ​ | U.S. AGENCY | ​ | MUNICIPAL | ​ | OTHER | ​ | SECURITIES | ​ | MATURITY
​ | ​ | (IN THOUSANDS)
COST BASIS |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ | ​
Within 1 year | ​ | $ | — |  | $ | 1,506 |  | $ | 1,001 |  | $ | — |  | $ | 2,507
After 1 year but within 5 years | ​ |  | — | ​ |  | 14,346 | ​ |  | 1,000 | ​ |  | — | ​ |  | 15,346
After 5 years but within 10 years | ​ |  | 2,500 | ​ |  | 14,794 | ​ |  | 480 | ​ |  | 1,169 | ​ |  | 18,943
Over 10 years | ​ |  | — | ​ |  | 313 | ​ |  | 931 | ​ |  | 25,797 | ​ |  | 27,041
Total | ​ | $ | 2,500 | ​ | $ | 30,959 | ​ | $ | 3,412 | ​ | $ | 26,966 | ​ | $ | 63,837
FAIR VALUE | ​ |  |  |  |  |  |  |  |  |  |  |  |  |  |
Within 1 year | ​ | $ | — |  | $ | 1,494 |  | $ | 992 |  | $ | — |  | $ | 2,486
After 1 year but within 5 years | ​ |  | — | ​ |  | 13,825 | ​ |  | 936 | ​ |  | — | ​ |  | 14,761
After 5 years but within 10 years | ​ |  | 2,135 | ​ |  | 12,821 | ​ |  | 480 | ​ |  | 1,118 | ​ |  | 16,554
Over 10 years | ​ |  | — | ​ |  | 266 | ​ |  | 931 | ​ |  | 23,473 | ​ |  | 24,670
Total | ​ | $ | 2,135 | ​ | $ | 28,406 | ​ | $ | 3,339 | ​ | $ | 24,591 | ​ | $ | 58,471
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 December 31, 2024 and 2023, aggregated by security type and length of time in a continuous loss position (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 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)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | DECEMBER 31, 2023
​ | ​ | LESS THAN 12 MONTHS | ​ | 12 MONTHS OR LONGER | ​ | TOTAL
​ | ​ | FAIR | ​ | UNREALIZED | ​ | FAIR | ​ | UNREALIZED | ​ | FAIR | ​ | UNREALIZED
​ |  | VALUE |  | LOSSES |  | VALUE |  | LOSSES |  | VALUE |  | LOSSES
U.S. Agency | ​ | $ | — | ​ | $ | — | ​ | $ | 5,339 | ​ | $ | (696) | ​ | $ | 5,339 | ​ | $ | (696)
U.S. Agency mortgage-backed securities | ​ | ​ | 4,120 | ​ | ​ | (20) | ​ | ​ | 73,511 | ​ | ​ | (11,904) | ​ | ​ | 77,631 | ​ | ​ | (11,924)
Municipal | ​ |  | — | ​ | ​ | — | ​ | ​ | 10,109 | ​ | ​ | (800) | ​ | ​ | 10,109 | ​ | ​ | (800)
Corporate bonds | ​ |  | 8,885 | ​ | ​ | (103) | ​ | ​ | 42,659 | ​ | ​ | (4,084) | ​ | ​ | 51,544 | ​ | ​ | (4,187)
Total | ​ | $ | 13,005 | ​ | $ | (123) | ​ | $ | 131,618 | ​ | $ | (17,484) | ​ | $ | 144,623 | ​ | $ | (17,607)
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 years ended December 31, 2024 and 2023 (in thousands).
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | BALANCE AT DECEMBER 31, 2023 | ​ | CHARGE-OFFS | ​ | RECOVERIES | ​ | PROVISION (RECOVERY) | ​ | BALANCE AT DECEMBER 31, 2024
Corporate bonds | ​ | $ | 926 | ​ | $ | (491) | ​ | $ | — | ​ | $ | (75) | ​ | $ | 360
Total | ​ | $ | 926 | ​ | $ | (491) | ​ | $ | — | ​ | $ | (75) | ​ | $ | 360
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | BALANCE AT DECEMBER 31, 2022 | ​ | IMPACT OF ADOPTING ASC 326 | ​ | CHARGE-OFFS | ​ | RECOVERIES | ​ | PROVISION (RECOVERY) | ​ | BALANCE AT DECEMBER 31, 2023
Corporate bonds | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 926 | ​ | $ | 926
Total | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 926 | ​ | $ | 926
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 years ended December 31, 2024 and 2023 (in thousands).
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | BALANCE AT DECEMBER 31, 2023 | ​ | CHARGE-OFFS | ​ | RECOVERIES | ​ | PROVISION (RECOVERY) | ​ | BALANCE AT DECEMBER 31, 2024
Municipal | ​ | $ | 2 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 2
Corporate bonds and other securities | ​ | ​ | 35 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 52 | ​ | ​ | 87
Total | ​ | $ | 37 | ​ | $ | — | ​ | $ | — | ​ | $ | 52 | ​ | $ | 89
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | BALANCE AT DECEMBER 31, 2022 | ​ | IMPACT OF ADOPTING ASC 326 | ​ | CHARGE-OFFS | ​ | RECOVERIES | ​ | PROVISION (RECOVERY) | ​ | BALANCE AT DECEMBER 31, 2023
Municipal | ​ | $ | — | ​ | $ | 3 | ​ | $ | — | ​ | $ | — | ​ | $ | (1) | ​ | $ | 2
Corporate bonds and other securities | ​ | ​ | — | ​ | ​ | 111 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | (76) | ​ | ​ | 35
Total | ​ | $ | — | ​ | $ | 114 | ​ | $ | — | ​ | $ | — | ​ | $ | (77) | ​ | $ | 37
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 December 31, 2024, aggregated by credit quality indicator (in thousands).
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | DECEMBER 31, 2024
​ | ​ | CREDIT RATING
​ | ​ | AAA/AA/A | ​ | BBB/BB/B | ​ | UNRATED | ​ | TOTAL
U.S. Agency |  | $ | 2,500 | ​ | $ | — |  | $ | — |  | $ | 2,500
U.S. Agency mortgage-backed securities | ​ | ​ | 26,966 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 26,966
Municipal | ​ | ​ | 30,959 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 30,959
Corporate bonds and other securities | ​ | ​ | 2,001 | ​ | ​ | — | ​ | ​ | 1,411 | ​ | ​ | 3,412
Total | ​ | $ | 62,426 | ​ | $ | — | ​ | $ | 1,411 | ​ | $ | 63,837

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