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Capital Requirements and Regulatory Restrictions | 12 Months Ended
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Dec. 31, 2024
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract] |
Capital Requirements and Regulatory Restrictions | Capital Requirements and Regulatory Restrictions The Company and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can result in certain mandatory, and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Under capital adequacy guidelines, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The Company’s and the Bank’s capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Quantitative measures established by regulators to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios of total and Tier I capital and common equity Tier I capital to risk-weighted assets, and of Tier I capital to average assets. Management believes that as of December 31, 2024 and 2023, the Company and the Bank met all capital adequacy requirements to which they are subject. The Bank is also subject to the regulatory framework for prompt corrective action. As of December 31, 2024, the most recent notification from the regulatory agencies categorized the Bank as well-capitalized. To be categorized as well-capitalized, the Bank must maintain minimum total risk-based, common equity Tier I risk-based, Tier I risk-based, and Tier I leverage ratios as set forth in the table below. There are no conditions or events since that notification that management believes have changed the Bank’s category. The Company has traditionally paid a quarterly cash dividend to its shareholders. Subsidiary dividends can be a significant source of funds for payment of dividends by the Company to its shareholders. Banking regulations may limit the amount of dividends that may be paid. Approval by regulatory authorities is required if the effect of dividends declared would cause the regulatory capital of the Bank to fall below specified minimum levels. Approval is also required if dividends declared exceed the net profits for that year combined with the retained net profits for the preceding two years. Under the foregoing dividend restrictions and while maintaining its “well capitalized” status, at December 31, 2024, unappropriated retained earnings of $31.4 million were available at the Bank for the declaration of dividends to the Company without prior approval from regulatory authorities. In addition to regulatory requirements and considerations, any payment of dividends in the future will depend on the Company’s earnings, financial condition and other factors considered relevant by the Company’s Board of Directors. There were no restricted funds on deposit used to meet regulatory reserve requirements at December 31, 2024 and 2023. The Company’s and the Bank’s actual and required capital amounts and ratios are as follows:
| Actual |  | Capital Requirements |  | Requirement to be Well-Capitalized
(In thousands) | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
At December 31, 2024 |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |
Cass Information Systems, Inc. | $ | 261,021 |  |  | 14.61 | % |  | $ | 142,969 |  |  | 8.00 | % |  | $ N/A |  | N/A %
Cass Commercial Bank | 207,519 |  |  | 17.68 |  |  | 93,911 |  |  | 8.00 |  |  | 117,389 |  |  | 10.00 |
Common Equity Tier I Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |
Cass Information Systems, Inc. | 247,354 |  |  | 13.84 |  |  | 80,420 |  |  | 4.50 |  |  | N/A |  | N/A
Cass Commercial Bank | 194,446 |  |  | 16.56 |  |  | 52,825 |  |  | 4.50 |  |  | 76,303 |  |  | 6.50 |
Tier I capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |
Cass Information Systems, Inc. | 247,354 |  |  | 13.84 |  |  | 107,226 |  |  | 6.00 |  |  | N/A |  | N/A
Cass Commercial Bank | 194,446 |  |  | 16.56 |  |  | 70,433 |  |  | 6.00 |  |  | 93,911 |  |  | 8.00 |
Tier I capital (to average assets) |  |  |  |  |  |  |  |  |  |  |
Cass Information Systems, Inc. | 247,354 |  |  | 10.57 |  |  | 93,625 |  |  | 4.00 |  |  | N/A |  | N/A
Cass Commercial Bank | 194,446 |  |  | 13.50 |  |  | 57,620 |  |  | 4.00 |  |  | 72,026 |  |  | 5.00 |
At December 31, 2023 |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |
Cass Information Systems, Inc. | $ | 269,580 |  |  | 15.49 | % |  | $ | 139,266 |  |  | 8.00 | % |  | $ N/A |  | N/A %
Cass Commercial Bank | 204,584 |  |  | 19.04 |  |  | 85,964 |  |  | 8.00 |  |  | 107,455 |  |  | 10.00 |
Common Equity Tier I Capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |
Cass Information Systems, Inc. | 256,359 |  |  | 14.73 |  |  | 78,337 |  |  | 4.50 |  |  | N/A |  | N/A
Cass Commercial Bank | 192,104 |  |  | 17.88 |  |  | 48,355 |  |  | 4.50 |  |  | 69,846 |  |  | 6.50 |
Tier I capital (to risk-weighted assets) |  |  |  |  |  |  |  |  |  |  |
Cass Information Systems, Inc. | 256,359 |  |  | 14.73 |  |  | 104,449 |  |  | 6.00 |  |  | N/A |  | N/A
Cass Commercial Bank | 192,104 |  |  | 17.88 |  |  | 64,473 |  |  | 6.00 |  |  | 85,964 |  |  | 8.00 |
Tier I capital (to average assets) |  |  |  |  |  |  |  |  |  |  |
Cass Information Systems, Inc. | 256,359 |  |  | 10.71 |  |  | 95,760 |  |  | 4.00 |  |  | N/A |  | N/A
Cass Commercial Bank | 192,104 |  |  | 12.49 |  |  | 61,526 |  |  | 4.00 |  |  | 76,908 |  |  | 5.00 |

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- Definition The entire disclosure for regulatory capital requirement for depository and lending institutions. Institutions include, but not are not limited to, finance company, insured depository institution, bank holding company, savings and loan association holding company, bank and savings institution not federally insured, mortgage company, foreign financial institution and credit union. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1D Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1A Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1F -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1F + Details
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