Employee Benefit Plans	6 Months Ended
Jun. 30, 2022
Postemployment Benefits [Abstract]
Employee Benefit Plans	13. Employee Benefit Plans Defined Contribution Plan In 2009, the Company adopted the Third Coast Bank, SSB 401(k) Plan (the “Plan”) covering substantially all employees. Employees may elect to defer a percentage of their compensation subject to certain limits based on federal tax laws. The Company may make a discretionary match of employees’ contributions based on a percentage of salary contributed by participants. Effective January 1, 2018, the discretionary contributions made by the Company were invested in the common stock of the Company in accordance with the Third Coast Bank, SSB Employee Stock Ownership Plan (“ESOP”). The ESOP became effective on January 1, 2018 for the exclusive benefit of the participants and their beneficiaries. Benefits under the ESOP generally are distributed in the form of cash. In addition, until the Company’s common stock was actively traded on an established securities market, the participant could demand (in accordance with the terms of the ESOP and applicable laws) that the Company repurchase shares of common stock distributed to the participant at the estimated fair value. This put option terminated upon the consummation of the Company's IPO and listing of its common stock on the NASDAQ Global Select Market in November 2021. Prior to the IPO, the fair value of shares of common stock, held by the ESOP, was deducted from permanent shareholders’ equity in the consolidated balance sheets, and was reflected in a line item below liabilities and above shareholders’ equity. This presentation was necessary in order to recognize the put option within the ESOP, consistent with SEC guidelines, because the Company was not publicly traded. The Company used an external third party to determine the maximum possible cash obligation related to those securities. The valuation was the same that was used for the stock option plan. Increases or decreases in the value of the cash obligation were included in a separate line item in the statements of changes in shareholders’ equity. An increase of approximately $317,000 in the fair value of the cash obligation was recorded for the year ended December 31, 2021. At December 31, 2021, the $2.3 million estimated fair value of the cash obligation for stock allocated under the ESOP plan was eliminated upon completion of the IPO. As of June 30, 2022, the number of shares held by the ESOP was 135,493 and there were no shares unallocated to plan participants. At June 30, 2022, shares committed to be released to the plan were 13,968 shares for a fair value of $309,000. All shares held by the ESOP were treated as outstanding at June 30, 2022. For the six months ended June 30, 2022 and 2021, Company contributions to the ESOP were approximately $723,000 and $385,000, respectively. Administrative expense related to the ESOP and the Plan for the same six month period totaled approximately $24,000 and $7,000, respectively. The costs were included in salaries and employee benefits in the accompanying consolidated statements of income.

Employee Benefit Plans

6 Months Ended

Jun. 30, 2022

13.

Employee Benefit Plans

Defined Contribution Plan

In 2009, the Company adopted the Third Coast Bank, SSB 401(k) Plan (the “Plan”) covering substantially all employees. Employees may elect to defer a percentage of their compensation subject to certain limits based on federal tax laws. The Company may make a discretionary match of employees’ contributions based on a percentage of salary contributed by participants.

Effective January 1, 2018, the discretionary contributions made by the Company were invested in the common stock of the Company in accordance with the Third Coast Bank, SSB Employee Stock Ownership Plan (“ESOP”). The ESOP became effective on January 1, 2018 for the exclusive benefit of the participants and their beneficiaries. Benefits under the ESOP generally are distributed in the form of cash. In addition, until the Company’s common stock was actively traded on an established securities market, the participant could demand (in accordance with the terms of the ESOP and applicable laws) that the Company repurchase shares of common stock distributed to the participant at the estimated fair value. This put option terminated upon the consummation of the Company's IPO and listing of its common stock on the NASDAQ Global Select Market in November 2021.

Prior to the IPO, the fair value of shares of common stock, held by the ESOP, was deducted from permanent shareholders’ equity in the consolidated balance sheets, and was reflected in a line item below liabilities and above shareholders’ equity. This presentation was necessary in order to recognize the put option within the ESOP, consistent with SEC guidelines, because the Company was not publicly traded. The Company used an external third party to determine the maximum possible cash obligation related to those securities. The valuation was the same that was used for the stock option plan. Increases or decreases in the value of the cash obligation were included in a separate line item in the statements of changes in shareholders’ equity. An increase of approximately $317,000 in the fair value of the cash obligation was recorded for the year ended December 31, 2021. At December 31, 2021, the $2.3 million estimated fair value of the cash obligation for stock allocated under the ESOP plan was eliminated upon completion of the IPO.

As of June 30, 2022, the number of shares held by the ESOP was 135,493 and there were no shares unallocated to plan participants. At June 30, 2022, shares committed to be released to the plan were 13,968 shares for a fair value of $309,000. All shares held by the ESOP were treated as outstanding at June 30, 2022.

For the six months ended June 30, 2022 and 2021, Company contributions to the ESOP were approximately $723,000 and $385,000, respectively. Administrative expense related to the ESOP and the Plan for the same six month period totaled approximately $24,000 and $7,000, respectively. The costs were included in salaries and employee benefits in the accompanying consolidated statements of income.