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v3.23.1

Investment Securities - Additional information (Details) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2023 USD ($) position security | Mar. 31, 2022 USD ($) | Dec. 31, 2022 USD ($) | Jan. 01, 2023 USD ($)
Investment Securities: |  |  |  |
Proceeds from sales of investment securities - available for sale | $ 0 | $ 0 |  |
Book value of securities available for sale and held to maturity | $ 131,913,000 |  | $ 134,002,000 |
Premium percentage on mortgage backed securities purchased | 100.90% |  |  |
Consolidated investment securities portfolio modified, years | 54 months 18 days |  | 56 months |
Unrealized loss on equity securities | $ 0 |  |  |
Held to maturity, allowance for credit losses | 83,000 |  |  | $ 114,000
Accrued interest receivable on held to maturity debt securities | 411,000 |  |  |
Held to maturity debt securities in non-accrual | 0 |  |  |
Available for Sale Securities, allowance for credit losses | 926,000 |  |  |
Accrued interest receivable on available for sale debt securities | $ 1,200,000 |  |  |
Number of available for sale debt securities in non accrual status | security | 1 |  |  |
Available-for-Sale debt securities in non-accrual | $ 926,000 |  |  |
Percentage of unrealized loss position for less than 12 months | 4.40% |  |  |
Percentage of unrealized loss position for greater than 12 months | 12.80% |  |  |
Assets | $ 1,345,957,000 |  | $ 1,363,874,000 |
Net income | 1,515,000 | $ 2,418,000 |  |
Unpaid interest | 17,000 |  |  |
Signature Bank |  |  |  |
Investment Securities: |  |  |  |
Assets |  |  | 110,400,000,000 |
Net income |  |  | $ 1,300,000,000 |
U.S. Agency |  |  |  |
Investment Securities: |  |  |  |
Held to maturity, allowance for credit losses | $ 0 |  |  |
Unrealized loss position for less than 12 months, Number of positions | position | 4 |  |  |
Unrealized loss position for greater than 12 months, Number of positions | position | 10 |  |  |
U.S. Agency mortgage-backed securities |  |  |  |
Investment Securities: |  |  |  |
Unrealized loss position for less than 12 months, Number of positions | position | 45 |  |  |
Unrealized loss position for greater than 12 months, Number of positions | position | 104 |  |  |
Municipal |  |  |  |
Investment Securities: |  |  |  |
Held to maturity, allowance for credit losses | $ 3,000 |  |  | 3,000
Unrealized loss position for less than 12 months, Number of positions | position | 11 |  |  |
Unrealized loss position for greater than 12 months, Number of positions | position | 47 |  |  |
Corporate bonds. |  |  |  |
Investment Securities: |  |  |  |
Held to maturity, allowance for credit losses |  |  |  | $ 111,000
Available for Sale Securities, allowance for credit losses | $ 926,000 |  |  |
Unrealized loss position for less than 12 months, Number of positions | position | 45 |  |  |
Unrealized loss position for greater than 12 months, Number of positions | position | 49 |  |  |
AAA/AA/A. |  |  |  |
INVESTMENT SECURITIES |  |  |  |
Portfolio rated | 52.50% |  | 52.50% |
Securities rated below A |  |  |  |
INVESTMENT SECURITIES |  |  |  |
Portfolio rated | 14.20% |  | 14.70% |
Maximum |  |  |  |
Investment Securities: |  |  |  |
Consolidated investment securities portfolio modified, years | 60 months |  |  |

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