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Securities | 6 Months Ended
--- | ---
Jun. 30, 2023
Notes to Financial Statements |
Securities | 4. Securities ​ The following table summarizes the Company’s portfolio of securities held-to-maturity on June 30, 2023: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross
​ | ​ | Amortized | ​ | ​ | ​ | ​ | Unrecognized | ​ | Unrecognized
​ |  | Cost |  | Fair Value |  | Gains | ​ | Losses
​ | ​ | (In thousands)
Municipals | ​ | $ | 66,548 | ​ | $ | 57,326 | ​ | $ | — | ​ | $ | 9,222
Total municipals | ​ |  | 66,548 | ​ |  | 57,326 | ​ |  | — | ​ |  | 9,222
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
FNMA | ​ |  | 7,865 | ​ |  | 7,011 | ​ |  | — | ​ |  | 854
Total mortgage-backed securities | ​ |  | 7,865 | ​ |  | 7,011 | ​ |  | — | ​ |  | 854
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Allowance for credit losses | ​ | ​ | (1,079) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Total | ​ | $ | 73,334 | ​ | $ | 64,337 | ​ | $ | — | ​ | $ | 10,076
​ The following table summarizes the Company’s portfolio of securities held-to-maturity on December 31, 2022: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross
​ | ​ | Amortized | ​ | ​ | ​ | ​ | Unrecognized | ​ | Unrecognized
​ |  | Cost |  | Fair Value |  | Gains | ​ | Losses
​ | ​ | (In thousands)
Municipals | ​ | $ | 66,936 | ​ | $ | 55,561 | ​ | $ | — | ​ | $ | 11,375
Total municipals | ​ |  | 66,936 | ​ |  | 55,561 | ​ |  | — | ​ |  | 11,375
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
FNMA | ​ |  | 7,875 | ​ |  | 6,989 | ​ |  | — | ​ |  | 886
Total mortgage-backed securities | ​ |  | 7,875 | ​ |  | 6,989 | ​ |  | — | ​ |  | 886
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Allowance for credit losses | ​ | ​ | (1,100) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | —
Total | ​ | $ | 73,711 | ​ | $ | 62,550 | ​ | $ | — | ​ | $ | 12,261
​ ​ The following table summarizes the Company’s portfolio of securities available for sale on June 30, 2023: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross
​ | ​ | Amortized | ​ | ​ | ​ | ​ | Unrealized | ​ | Unrealized
​ |  | Cost |  | Fair Value |  | Gains |  | Losses
​ | ​ | (In thousands)
U.S. government agencies | ​ | $ | 83,339 | ​ | $ | 81,290 | ​ | $ | 151 | ​ | $ | 2,200
Corporate | ​ | ​ | 173,095 | ​ | ​ | 150,602 | ​ | ​ | — | ​ | ​ | 22,493
Mutual funds | ​ |  | 11,346 | ​ |  | 11,346 | ​ |  | — | ​ |  | —
Collateralized loan obligations | ​ |  | 262,471 | ​ |  | 258,973 | ​ |  | 58 | ​ |  | 3,556
Other | ​ |  | 1,434 | ​ |  | 1,434 | ​ |  | — | ​ |  | —
Total other securities | ​ |  | 531,685 | ​ |  | 503,645 | ​ |  | 209 | ​ |  | 28,249
REMIC and CMO | ​ |  | 168,675 | ​ |  | 140,161 | ​ |  | — | ​ |  | 28,514
GNMA | ​ |  | 8,861 | ​ |  | 7,079 | ​ |  | 1 | ​ |  | 1,783
FNMA | ​ |  | 165,064 | ​ |  | 141,717 | ​ |  | — | ​ |  | 23,347
FHLMC | ​ |  | 92,810 | ​ |  | 76,954 | ​ |  | — | ​ |  | 15,856
Total mortgage-backed securities | ​ |  | 435,410 | ​ |  | 365,911 | ​ |  | 1 | ​ |  | 69,500
Total Securities excluding portfolio layer adjustments | ​ | ​ | 967,095 | ​ | ​ | 869,556 | ​ | ​ | 210 | ​ | ​ | 97,749
Unallocated portfolio layer basis adjustments (1) | ​ | ​ | (5,504) | ​ | ​ | n/a | ​ | ​ | — | ​ | ​ | (5,504)
Total securities available for sale | ​ | $ | 961,591 | ​ | $ | 869,556 | ​ | $ | 210 | ​ | $ | 92,245
(1) Represents the amount of portfolio layer method basis adjustments related to available for sale (“AFS”) securities hedged in a closed portfolio. Under GAAP portfolio layer method basis adjustments are not allocated to individual securities, however, the amounts impact the unrealized gains or losses for the individual securities being hedged. See Note 11 (“Derivative Financial Instruments”) of the Notes to the Consolidated Financial Statements. ​ The following table summarizes the Company’s portfolio of securities available for sale on December 31, 2022: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross
​ | ​ | Amortized | ​ | ​ | ​ | ​ | Unrealized | ​ | Unrealized
​ |  | Cost |  | Fair Value |  | Gains |  | Losses
​ | ​ | (In thousands)
U.S. government agencies | ​ | $ | 83,720 | ​ | $ | 81,103 | ​ | $ | 2 | ​ | $ | 2,619
Corporate | ​ | ​ | 146,430 | ​ | ​ | 131,766 | ​ | ​ | — | ​ | ​ | 14,664
Mutual funds | ​ |  | 11,211 | ​ |  | 11,211 | ​ |  | — | ​ |  | —
Collateralized loan obligations | ​ |  | 129,684 | ​ |  | 125,478 | ​ |  | — | ​ |  | 4,206
Other | ​ |  | 1,516 | ​ |  | 1,516 | ​ |  | — | ​ |  | —
Total other securities | ​ |  | 372,561 | ​ |  | 351,074 | ​ |  | 2 | ​ |  | 21,489
REMIC and CMO | ​ |  | 175,712 | ​ |  | 148,414 | ​ |  | — | ​ |  | 27,298
GNMA | ​ |  | 9,193 | ​ |  | 7,317 | ​ |  | 3 | ​ |  | 1,879
FNMA | ​ |  | 172,690 | ​ |  | 148,265 | ​ |  | — | ​ |  | 24,425
FHLMC | ​ |  | 96,725 | ​ |  | 80,287 | ​ |  | — | ​ |  | 16,438
Total mortgage-backed securities | ​ |  | 454,320 | ​ |  | 384,283 | ​ |  | 3 | ​ |  | 70,040
Total securities available for sale | ​ | $ | 826,881 | ​ | $ | 735,357 | ​ | $ | 5 | ​ | $ | 91,529
​ The corporate securities held by the Company at June 30, 2023 and December 31, 2022, are issued by U.S. banking institutions. The CMOs held by the Company at June 30, 2023 and December 31, 2022, are either fully guaranteed or issued by a government sponsored enterprise. ​ The following tables detail the amortized cost and fair value of the Company’s securities classified as held-to-maturity and available for sale at June 30, 2023, by contractual maturity. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Amortized | ​ | ​ | ​
Securities held-to-maturity: |  | Cost |  | Fair Value
​ |  | (In thousands)
Due after ten years | ​ | $ | 66,548 | ​ | $ | 57,326
Total other securities | ​ | ​ | 66,548 | ​ | ​ | 57,326
Mortgage-backed securities | ​ | ​ | 7,865 | ​ | ​ | 7,011
​ | ​ | ​ | 74,413 | ​ | ​ | 64,337
​ | ​ | ​ | ​ | ​ | ​ | ​
Allowance for credit losses | ​ | ​ | (1,079) | ​ | ​ | -
Total securities held-to-maturity |  | $ | 73,334 |  | $ | 64,337
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Amortized | ​ | ​ | ​
Securities available for sale (1): |  | Cost |  | Fair Value
​ | ​ | (In thousands)
Due in one year or less |  | $ | 59,888 |  | $ | 58,498
Due after one year through five years | ​ | ​ | 74,823 | ​ | ​ | 69,033
Due after five years through ten years | ​ | ​ | 255,416 | ​ |  | 235,696
Due after ten years | ​ | ​ | 130,212 | ​ | ​ | 129,072
Total other securities | ​ |  | 520,339 | ​ |  | 492,299
Mutual funds | ​ |  | 11,346 | ​ |  | 11,346
Mortgage-backed securities | ​ |  | 435,410 | ​ |  | 365,911
Total securities available for sale | ​ | $ | 967,095 | ​ | $ | 869,556
​ (1) The table above excludes the unallocated portfolio layer basis adjustments totaling $5.5 million related to AFS securities hedged in a closed portfolio at June 30, 2023. See Note 11 (“Derivative Financial Instruments”) of the Notes to the Consolidated Financial Statements. ​ The following tables show the Company’s securities with gross unrealized losses and their fair value, aggregated by category and length of time that individual securities have been in a continuous unrealized loss position, at the dates indicated: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | At June 30, 2023
​ | ​ | ​ | ​ | Total | ​ | Less than 12 months | ​ | 12 months or more
​ | ​ | ​ | ​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​ | ​ | Unrealized
​ |  | Count |  | Fair Value |  | Losses |  | Fair Value |  | Losses |  | Fair Value |  | Losses
​ | ​ | (Dollars in thousands)
Held-to-maturity securities |  |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Municipals |  | 3 | ​ | $ | 57,326 | ​ | $ | 9,222 | ​ | $ | — | ​ | $ | — | ​ | $ | 57,326 | ​ | $ | 9,222
Total other securities |  | 3 | ​ |  | 57,326 | ​ |  | 9,222 | ​ |  | — | ​ |  | — | ​ |  | 57,326 | ​ |  | 9,222
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
FNMA |  | 1 | ​ |  | 7,011 | ​ |  | 854 | ​ |  | — | ​ |  | — | ​ |  | 7,011 | ​ |  | 854
Total mortgage-backed securities |  | 1 | ​ |  | 7,011 | ​ |  | 854 | ​ |  | — | ​ |  | — | ​ |  | 7,011 | ​ |  | 854
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total |  | 4 | ​ | $ | 64,337 | ​ | $ | 10,076 | ​ | $ | — | ​ | $ | — | ​ | $ | 64,337 | ​ | $ | 10,076
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for sale securities (1) |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
U.S. Government Agencies & Treasury |  | 8 | ​ | $ | 73,794 | ​ | $ | 2,200 | ​ | $ | 5,437 | ​ | $ | 24 | ​ | $ | 68,357 | ​ | $ | 2,176
Corporate |  | 26 | ​ |  | 150,602 | ​ |  | 22,493 | ​ |  | 46,412 | ​ |  | 6,748 | ​ |  | 104,190 | ​ |  | 15,745
CLO |  | 31 | ​ |  | 229,211 | ​ |  | 3,556 | ​ |  | 104,188 | ​ |  | 1,004 | ​ |  | 125,023 | ​ |  | 2,552
Total other securities |  | 65 | ​ |  | 453,607 | ​ |  | 28,249 | ​ |  | 156,037 | ​ |  | 7,776 | ​ |  | 297,570 | ​ |  | 20,473
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
REMIC and CMO |  | 47 | ​ |  | 139,882 | ​ |  | 28,514 | ​ |  | 940 | ​ |  | 52 | ​ |  | 138,942 | ​ |  | 28,462
GNMA |  | 10 | ​ |  | 6,952 | ​ |  | 1,783 | ​ |  | 97 | ​ |  | 1 | ​ |  | 6,855 | ​ |  | 1,782
FNMA |  | 48 | ​ |  | 141,717 | ​ |  | 23,347 | ​ |  | 7,493 | ​ |  | 399 | ​ |  | 134,224 | ​ |  | 22,948
FHLMC |  | 18 | ​ |  | 76,954 | ​ |  | 15,856 | ​ |  | 10,457 | ​ |  | 751 | ​ |  | 66,497 | ​ |  | 15,105
Total mortgage-backed securities |  | 123 | ​ |  | 365,505 | ​ |  | 69,500 | ​ |  | 18,987 | ​ |  | 1,203 | ​ |  | 346,518 | ​ |  | 68,297
Total |  | 188 | ​ | $ | 819,112 | ​ | $ | 97,749 | ​ | $ | 175,024 | ​ | $ | 8,979 | ​ | $ | 644,088 | ​ | $ | 88,770
(1) The table above excludes the unallocated portfolio layer basis adjustments totaling $5.5 million related to AFS securities hedged in a closed portfolio totaling at June 30, 2023. See Note 11 (“Derivative Financial Instruments”) of the Notes to the Consolidated Financial Statements. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | At December 31, 2022
​ | ​ | ​ | ​ | Total | ​ | Less than 12 months | ​ | 12 months or more
​ | ​ | ​ | ​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​ | ​ | Unrealized
​ |  | Count |  | Fair Value |  | Losses |  | Fair Value |  | Losses |  | Fair Value |  | Losses
​ | ​ | (Dollars in thousands)
Held-to-maturity securities |  |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Municipals |  | 3 | ​ | $ | 55,561 | ​ | $ | 11,375 | ​ | $ | 55,561 | ​ | $ | 11,375 | ​ | $ | — | ​ | $ | —
Total other securities |  | 3 | ​ |  | 55,561 | ​ |  | 11,375 | ​ |  | 55,561 | ​ |  | 11,375 | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
FNMA |  | 1 | ​ |  | 6,989 | ​ |  | 886 | ​ |  | 6,989 | ​ |  | 886 | ​ |  | — | ​ |  | —
Total mortgage-backed securities |  | 1 | ​ |  | 6,989 | ​ |  | 886 | ​ |  | 6,989 | ​ |  | 886 | ​ |  | — | ​ |  | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total |  | 4 | ​ | $ | 62,550 | ​ | $ | 12,261 | ​ | $ | 62,550 | ​ | $ | 12,261 | ​ | $ | — | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Available for sale securities |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |
U.S. government agencies |  | 7 | ​ | $ | 77,856 | ​ | $ | 2,619 | ​ | $ | 77,059 | ​ | $ | 2,517 | ​ | $ | 797 | ​ | $ | 102
Corporate |  | 20 | ​ |  | 131,766 | ​ |  | 14,664 | ​ |  | 45,447 | ​ |  | 3,553 | ​ |  | 86,319 | ​ |  | 11,111
CLO |  | 19 | ​ |  | 125,478 | ​ |  | 4,206 | ​ |  | 95,518 | ​ |  | 2,916 | ​ |  | 29,960 | ​ |  | 1,290
Total other securities |  | 46 | ​ |  | 335,100 | ​ |  | 21,489 | ​ |  | 218,024 | ​ |  | 8,986 | ​ |  | 117,076 | ​ |  | 12,503
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
REMIC and CMO |  | 47 | ​ |  | 148,120 | ​ |  | 27,298 | ​ |  | 40,911 | ​ |  | 3,457 | ​ |  | 107,209 | ​ |  | 23,841
GNMA |  | 8 | ​ |  | 7,133 | ​ |  | 1,879 | ​ |  | 64 | ​ |  | — | ​ |  | 7,069 | ​ |  | 1,879
FNMA |  | 47 | ​ |  | 148,229 | ​ |  | 24,425 | ​ |  | 38,296 | ​ |  | 3,871 | ​ |  | 109,933 | ​ |  | 20,554
FHLMC |  | 18 | ​ |  | 80,287 | ​ |  | 16,438 | ​ |  | 24,838 | ​ |  | 2,397 | ​ |  | 55,449 | ​ |  | 14,041
Total mortgage-backed securities |  | 120 | ​ |  | 383,769 | ​ |  | 70,040 | ​ |  | 104,109 | ​ |  | 9,725 | ​ |  | 279,660 | ​ |  | 60,315
Total |  | 166 | ​ | $ | 718,869 | ​ | $ | 91,529 | ​ | $ | 322,133 | ​ | $ | 18,711 | ​ | $ | 396,736 | ​ | $ | 72,818
​ The Company reviewed each available for sale security that had an unrealized loss at June 30, 2023, and December 31, 2022. The Company does not have the intent to sell these securities, and it is more likely than not the Company will not be required to sell the securities before recovery of the securities’ amortized cost basis. If the Company identifies any decline in the fair value due to credit loss factors and evaluation indicates that a credit loss exists, then the present value of cash flows that is expected to be collected from the security is compared to the amortized cost basis of the security. If the present value of the cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost basis. All of these securities are rated investment grade or above and have a long history of no credit losses. It is not anticipated that these securities would be settled at a price that is less than the amortized cost of the Company’s investment. In determining the risk of loss for available for sale securities, the Company considered that mortgage-backed securities are either fully guaranteed or issued by a government sponsored enterprise, which has a credit rating and perceived credit risk comparable to the U.S. government, and that issuers of the collateralized loan obligations (“CLO”) and the issuer of corporate securities are global systematically important banks. Each of these securities is performing according to its terms and, in the opinion of management, will continue to perform according to its terms. Based on this review, management believes that the unrealized losses have resulted from other factors not deemed credit-related and no allowance for credit loss was recorded. The Company reviewed each held-to-maturity security at June 30, 2023, and December 31, 2022 as part of its quarterly Current Expected Credit Loss (“CECL”) process, resulting in an allowance for credit losses of $1.1 million at each of June 30, 2023 and December 31, 2022. It is the Company’s policy to exclude accrued interest receivable from the calculation of the allowance for credit losses on held-to-maturity and the valuation of available for sale securities. Accrued interest receivable on held-to-maturity securities totaled $0.1 million each at June 30, 2023 and December 31, 2022 and accrued interest receivable on available for sale debt securities totaled $5.9 million and $3.7 million at June 30, 2023 and December 31, 2022, respectively. The following table presents the activity in the allowance for credit losses for debt securities held-to-maturity.
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | For the three months ended June 30, | ​ | For the six months ended June 30,
​ | 2023 | ​ | 2022 | ​ | 2023 | ​ | 2022
​ | ​ | (In thousands)
Beginning balance | $ | 1,087 | ​ | $ | 986 | ​ | $ | 1,100 | ​ | $ | 862
(Benefit) provision |  | (8) | ​ |  | 99 | ​ | ​ | (21) | ​ |  | 223
Allowance for credit losses | $ | 1,079 | ​ | $ | 1,085 | ​ | $ | 1,079 | ​ | $ | 1,085
​ Realized gains and losses on the sales of securities are determined using the specific identification method. The Company did not sell any securities during the three and six months ended June 30, 2023 and 2022.

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