Nature of Business (Policies)	6 Months Ended
Jun. 30, 2026
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation These unaudited interim financial statements are prepared on a consolidated basis for GBank Financial Holdings Inc. (“GBFH”) and its wholly owned subsidiary, GBank (the “Bank”). References herein to the “Company” refer to the consolidated entity and its financial statements. The Company has prepared these unaudited consolidated financial statements in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information, SEC rules that permit reduced disclosure for interim periods, and Rule 8-03 of Regulation S-X. In the opinion of management, all adjustments (all of which are of a normal recurring nature) that are necessary for a fair statement are reflected in the unaudited consolidated financial statements. There have been no material changes to the Company's significant accounting policies for the three and six months ended June 30, 2026. The December 31, 2025 consolidated balance sheet information contained in this Quarterly Report on Form 10-Q was derived from the Company's 2025 audited consolidated financial statements. The unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2025, including the notes thereto, included in the Company’s Annual Report on Form 10-K. Operating results for the three and six months ended June 30, 2026 are not necessarily indicative of the results that may be expected for the year ending December 31, 2026. All significant intercompany transactions and accounts have been eliminated. The Company has one reportable segment. The Company’s chief operating decision maker (“CODM”) evaluates the operations of the Company using consolidated information for purposes of allocating resources and assessing performance. See Note 13 - Segment Reporting for more information. In accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 855, “Subsequent Events,” the Company’s management has evaluated subsequent events for potential recognition or disclosure through the date of the issuance of these consolidated financial statements. No subsequent events were identified that would have required a change to the consolidated financial statements or disclosure in the notes to the consolidated financial statements. To prepare financial statements in conformity with accounting principles generally accepted in the United States of America, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided, and actual results could differ.
Nature of Operations	Nature of Operations GBFH is a registered bank holding company whose wholly-owned banking subsidiary, GBank, provides banking services to commercial and consumer customers. GBank’s business is concentrated in the Las Vegas, Nevada area and is subject to the general economic conditions of that area. GBank’s primary market for deposit customers is in Las Vegas and Clark County, Nevada, although GBank accepts deposits from deposit listing services as needed to support its funding needs. GBank’s lending operations are carried out in both (i) its local market area, comprised of Nevada, California, Utah, and Arizona, and (ii) across the United States primarily through the origination, sale, and servicing of U.S. Small Business Administration (“SBA”) and U.S. Department of Agriculture (“USDA”) loans.
Accounting Policies	Accounting Policies The significant accounting and reporting policies followed by the Company are in accordance with GAAP and are presented in the Company's Annual Report on Form 10-K filed with the SEC on March 27, 2026. The Company reports the following update to its significant accounting policies: Credit Card Fraud Losses: Credit card fraud losses are recognized in the period in which fraudulent activity is identified and the related loss is considered probable and reasonably estimable. First-party credit card fraud losses (fraudulent transactions initiated by the cardholder) are recognized within the allowance for credit losses. The Company maintains reserves for estimated first-party credit card fraud losses based on recent transaction trends, portfolio risk characteristics, and current economic and fraud environment conditions. Third-party fraud losses (fraudulent transactions initiated by someone other than the cardholder) are recognized within noninterest expense.
Recent Accounting Pronouncements Adopted	Recent Accounting Pronouncements Adopted No accounting pronouncements were adopted by the Company during the six months of 2026.
Recent Accounting Pronouncements Pending Adoption	Recent Accounting Pronouncements Pending Adoption The following reflect accounting pronouncements pending adoption by the Company: ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40) – Disaggregation of Income Statement Expenses (“ASU 2024-03”) was issued in November 2024 and requires additional disclosure about specified categories of expenses included in relevant expense captions presented on the face of the consolidated statements of income. ASU 2024-03 is effective for annual periods beginning after December 15, 2026, and for interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted. The amendments may be applied either prospectively to consolidated financial statements issued for reporting periods after the effective date of ASU 2024-03, or retrospectively to all prior periods presented in the consolidated financial statements. The Company is currently evaluating the impact that ASU 2024-03 will have on its disclosures. ASU 2025-03, Business Combinations (Topic 805) and Consolidation (Topic 810): Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity (“ASU 2025-03”) was issued in May 2025 and amends guidance to improve consistency in identifying the accounting acquirer in transactions involving the acquisition of a variable interest entity that meets the definition of a business. The amendments are effective for fiscal years beginning after December 15, 2026, with early adoption permitted. The Company is currently evaluating the impact of the adoption of this guidance on its consolidated financial statements and related disclosures.

Nature of Business (Policies)

6 Months Ended

Jun. 30, 2026

These unaudited interim financial statements are prepared on a consolidated basis for GBank Financial Holdings Inc. (“GBFH”) and its wholly owned subsidiary, GBank (the “Bank”). References herein to the “Company” refer to the consolidated entity and its financial statements. The Company has prepared these unaudited consolidated financial statements in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information, SEC rules that permit reduced disclosure for interim periods, and Rule 8-03 of Regulation S-X. In the opinion of management, all adjustments (all of which are of a normal recurring nature) that are necessary for a fair statement are reflected in the unaudited consolidated financial statements. There have been no material changes to the Company's significant accounting policies for the three and six months ended June 30, 2026. The December 31, 2025 consolidated balance sheet information contained in this Quarterly Report on Form 10-Q was derived from the Company's 2025 audited consolidated financial statements. The unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements for the year ended December 31, 2025, including the notes thereto, included in the Company’s Annual Report on Form 10-K. Operating results for the three and six months ended June 30, 2026 are not necessarily indicative of the results that may be expected for the year ending December 31, 2026. All significant intercompany transactions and accounts have been eliminated.

The Company has one reportable segment. The Company’s chief operating decision maker (“CODM”) evaluates the operations of the Company using consolidated information for purposes of allocating resources and assessing performance. See Note 13 - Segment Reporting for more information.

In accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 855, “Subsequent Events,” the Company’s management has evaluated subsequent events for potential recognition or disclosure through the date of the issuance of these consolidated financial statements. No subsequent events were identified that would have required a change to the consolidated financial statements or disclosure in the notes to the consolidated financial statements.

To prepare financial statements in conformity with accounting principles generally accepted in the United States of America, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided, and actual results could differ.

Nature of Operations

GBFH is a registered bank holding company whose wholly-owned banking subsidiary, GBank, provides banking services to commercial and consumer customers. GBank’s business is concentrated in the Las Vegas, Nevada area and is subject to the general economic conditions of that area. GBank’s primary market for deposit customers is in Las Vegas and Clark County, Nevada, although GBank accepts deposits from deposit listing services as needed to support its funding needs. GBank’s lending operations are carried out in both (i) its local market area, comprised of Nevada, California, Utah, and Arizona, and (ii) across the United States primarily through the origination, sale, and servicing of U.S. Small Business Administration (“SBA”) and U.S. Department of Agriculture (“USDA”) loans.

Accounting Policies

The significant accounting and reporting policies followed by the Company are in accordance with GAAP and are presented in the Company's Annual Report on Form 10-K filed with the SEC on March 27, 2026. The Company reports the following update to its significant accounting policies:

Credit Card Fraud Losses: Credit card fraud losses are recognized in the period in which fraudulent activity is identified and the related loss is considered probable and reasonably estimable. First-party credit card fraud losses (fraudulent transactions initiated by the cardholder) are recognized within the allowance for credit losses. The Company maintains reserves for estimated first-party credit card fraud losses based on recent transaction trends, portfolio risk characteristics, and current economic and fraud environment conditions. Third-party fraud losses (fraudulent transactions initiated by someone other than the cardholder) are recognized within noninterest expense.

Recent Accounting Pronouncements Adopted

No accounting pronouncements were adopted by the Company during the six months of 2026.

Recent Accounting Pronouncements Pending Adoption

The following reflect accounting pronouncements pending adoption by the Company:

ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40) – Disaggregation of Income Statement Expenses (“ASU 2024-03”) was issued in November 2024 and requires additional disclosure about specified categories of expenses included in relevant expense captions presented on the face of the consolidated statements of income. ASU 2024-03 is effective for annual periods beginning after December 15, 2026, and for interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted. The amendments may be applied either prospectively to consolidated financial statements issued for reporting periods after the effective date of ASU 2024-03, or retrospectively to all prior periods presented in the consolidated financial statements. The Company is currently evaluating the impact that ASU 2024-03 will have on its disclosures.

ASU 2025-03, Business Combinations (Topic 805) and Consolidation (Topic 810): Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity (“ASU 2025-03”) was issued in May 2025 and amends guidance to improve consistency in identifying the accounting acquirer in transactions involving the acquisition of a variable interest entity that meets the definition of a business. The amendments are effective for fiscal years beginning after December 15, 2026, with early adoption permitted. The Company is currently evaluating the impact of the adoption of this guidance on its consolidated financial statements and related disclosures.