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Subordinated Debentures (Details) - USD ($) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Dec. 22, 2005 | Jun. 23, 2003 | Dec. 31, 2022 | Dec. 31, 2021
Subordinated Debentures (Details) [Line Items] |  |  |  |  |
Subordinated debentures |  |  |  | $ 36,214,000 | $ 36,106,000
Dodd-Frank Act prohibits, description |  |  |  | Dodd-Frank Act prohibit institutions that had more than $15 billion in assets on December 31, 2009 from including trust preferred securities as Tier 1 capital beginning in 2013, with one-third phased out over the two years ending in 2015. Financial institutions with less than $15 billion in total assets, such as the Bank, may continue to include their trust preferred securities issued prior to May 19, 2010 in Tier 1 capital, but cannot include in Tier 1 capital trust preferred securities issued after such date. |
Fixed annual rate |  |  |  | 4.75% |
Subordinate term |  |  |  | 10 years |
Greenville First Statutory Trust One [Member] |  |  |  |  |
Subordinated Debentures (Details) [Line Items] |  |  |  |  |
Trust preferred securities |  |  | $ 6,000,000 |  |
Trust preferred securities maturity date |  |  | Jun. 26, 2033 |  |
Floating interest rate of trust preferred securities |  |  |  | 7.82% |
LIBOR rate |  |  |  | 3.10% |
Proceeds from issuance trust preferred securities |  |  |  | $ 6,000,000 |
Initial proceeds from capital investment in trust |  |  |  | 186,000 |
Subordinated debentures |  |  |  | $ 6,200,000 |
Greenville First Statutory Trust Two [Member] |  |  |  |  |
Subordinated Debentures (Details) [Line Items] |  |  |  |  |
Trust preferred securities |  | $ 7,000,000 |  |  |
Trust preferred securities maturity date |  | Dec. 22, 2035 |  |  |
Floating interest rate of trust preferred securities |  |  |  | 6.17% |
LIBOR rate |  |  |  | 1.44% |
Proceeds from issuance trust preferred securities |  |  |  | $ 7,000,000 |
Initial proceeds from capital investment in trust |  |  |  | 217,000 |
Subordinated debentures |  |  |  | $ 7,200,000 |
Subordinate Debt [Member] |  |  |  |  |
Subordinated Debentures (Details) [Line Items] |  |  |  |  |
Aggregate principal amount of subordinated notes | $ 23,000,000 |  |  |  |
Rate of interest of subordinated notes | 4.75% |  |  |  |

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