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Available for Sale Securities (Tables) | 12 Months Ended
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Dec. 31, 2021
Available for Sale Securities |
Schedule of amortized cost, gross unrealized gains and losses and fair values of available for sale securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2021
​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​
​ | ​ | ​ | ​ | Unrealized | ​ | Unrealized | ​ | ​
​ |  | Amortized Cost |  | Gains |  | Losses |  | Fair Value
U.S. Treasury securities | ​ | $ | 60,273 | ​ | $ | 2 | ​ | $ | (450) | ​ | $ | 59,825
U.S. government agency mortgage-backed securities–residential | ​ | ​ | 179,493 | ​ | ​ | 344 | ​ | ​ | (3,346) | ​ | ​ | 176,491
U.S. government agency securities |  | ​ | 24,800 |  | ​ | 53 |  | ​ | (131) |  | ​ | 24,722
Municipal securities(1) |  | ​ | 6,858 |  | ​ | 33 |  | ​ | (40) |  | ​ | 6,851
Corporate bonds |  | ​ | 11,700 |  | ​ | 117 |  | ​ | (65) |  | ​ | 11,752
Other |  | ​ | 620 |  | ​ | 22 |  | ​ | — |  | ​ | 642
Total | ​ | $ | 283,744 | ​ | $ | 571 | ​ | $ | (4,032) | ​ | $ | 280,283
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, 2020
​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​
​ | ​ | ​ | ​ | Unrealized | ​ | Unrealized | ​ | ​
​ |  | Amortized Cost |  | Gains |  | Losses |  | Fair Value
U.S. government agency mortgage-backed securities–residential | ​ | $ | 88,197 | ​ | $ | 1,350 | ​ | $ | (277) | ​ | $ | 89,270
U.S. government agency securities | ​ | ​ | 7,013 |  | ​ | 148 |  | ​ | — |  | ​ | 7,161
Municipal securities(1) |  | ​ | 1,445 |  | ​ | 31 |  | ​ | — |  | ​ | 1,476
Corporate bonds | ​ | ​ | 4,400 |  | ​ | 49 |  | ​ | (3) |  | ​ | 4,446
Other | ​ | ​ | 621 |  | ​ | — |  | ​ | (41) |  | ​ | 580
Total | ​ | $ | 101,676 | ​ | $ | 1,578 | ​ | $ | (321) | ​ | $ | 102,933
(1) The issuers of municipal securities are all within New York State.
Schedule of gross unrealized losses and fair value, securities in continuous unrealized loss position | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2021
​ | ​ | Less Than 12 Months | ​ | 12 Months or Longer | ​ | Total
​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​ | Unrealized | ​ | ​ | ​ | Unrealized
​ |  | Fair Value |  | Losses |  | Fair Value |  | Losses |  | Fair Value |  | Losses
U.S. Treasury securities | ​ | $ | 49,007 | ​ | $ | (268) | ​ | $ | 5,797 | ​ | $ | (182) | ​ | $ | 54,804 | ​ | $ | (450)
U.S. government agency mortgage-backed securities-residential | ​ | ​ | 139,019 | ​ | ​ | (3,035) | ​ | ​ | 11,002 | ​ | ​ | (311) | ​ | ​ | 150,021 | ​ | ​ | (3,346)
U.S. government agency securities | ​ | ​ | 14,625 | ​ | ​ | (131) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 14,625 | ​ | ​ | (131)
Municipal Securities | ​ | ​ | 2,469 | ​ | ​ | (40) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 2,469 | ​ | ​ | (40)
Corporate Bonds | ​ | ​ | 5,885 | ​ | ​ | (65) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 5,885 | ​ | ​ | (65)
Total | ​ | $ | 211,005 | ​ | $ | (3,539) | ​ | $ | 16,799 | ​ | $ | (493) | ​ | $ | 227,804 | ​ | $ | (4,032)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, 2020
​ | ​ | Less Than 12 Months | ​ | 12 Months or Longer | ​ | Total
​ | ​ | ​ | ​ | Unrealized | ​ | ​ | ​ | Unrealized | ​ | ​ | ​ | Unrealized
​ |  | Fair Value |  | Losses |  | Fair Value |  | Losses |  | Fair Value |  | Losses
U.S. government agency mortgage-backed securities-residential | ​ | $ | 30,243 | ​ | $ | (269) | ​ | $ | 293 | ​ | $ | (8) | ​ | $ | 30,536 | ​ | $ | (277)
Corporate Bonds | ​ | ​ | 747 | ​ | ​ | (3) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 747 | ​ | ​ | (3)
Other | ​ | ​ | 522 | ​ | ​ | (41) | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 522 | ​ | ​ | (41)
Total | ​ | $ | 31,512 | ​ | $ | (313) | ​ | $ | 293 | ​ | $ | (8) | ​ | $ | 31,805 | ​ | $ | (321)
Schedule of maturities of debt securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2021 | ​ | December 31, 2020
​ |  | Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
Maturity: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Within 1 year | ​ | $ | 12,729 | ​ | $ | 12,726 | ​ | $ | 102 | ​ | $ | 102
After 1 but within 5 years |  | ​ | 67,912 |  | ​ | 67,463 |  | ​ | 2,155 |  | ​ | 2,155
After 5 but within 10 years |  | ​ | 22,595 |  | ​ | 22,567 |  | ​ | 9,946 |  | ​ | 10,162
After 10 years |  | ​ | 395 |  | ​ | 394 |  | ​ | 655 |  | ​ | 664
Total Maturities |  | ​ | 103,631 |  | ​ | 103,150 |  | ​ | 12,858 |  | ​ | 13,083
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Mortgage-backed securities |  | ​ | 179,493 |  | ​ | 176,491 |  | ​ | 88,197 |  | ​ | 89,270
Other |  | ​ | 620 |  | ​ | 642 |  | ​ | 621 |  | ​ | 580
Total | ​ | $ | 283,744 | ​ | $ | 280,283 | ​ | $ | 101,676 | ​ | $ | 102,933

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