Subsequent Event	3 Months Ended
Mar. 31, 2024
Subsequent Events [Abstract]
Subsequent Event	Note 10 - Subsequent Events Effective April 22, 2024, First Financial Bank, N.A. and First Financial Trust and Asset Management Company, N.A. converted their charters to a Texas state banking association and a Texas chartered trust company, respectively. The Bank is now a Texas banking association chartered and regulated by the Texas Department of Banking and Trust Company is now a Texas trust company chartered and regulated by the Texas Department of Banking. The Bank will continue to be a member bank of the Federal Reserve system and maintain FDIC deposit insurance.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

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