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Regulations and Supervision | 12 Months Ended
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Dec. 31, 2021
Equity [Abstract] |
Regulations and Supervision | Regulations and Supervision Capital Requirements: The Company and its subsidiary banks are subject to various regulatory capital requirements administered by federal bank regulatory agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material adverse effect on the Company’s business, results of operation and financial condition. Under capital adequacy guidelines and the regulatory framework for prompt corrective action (PCA), banks must meet specific guidelines that involve quantitative measures of assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. Capital amounts and classifications of the Company and its subsidiary banks are also subject to qualitative judgments by regulators concerning components, risk weightings, and other factors. Quantitative measures established by regulation to ensure capital adequacy require the maintenance of minimum amounts and ratios (set forth in the table below) of common equity Tier I capital, total capital and Tier 1 capital to risk-weighted assets (as defined in the regulation), and of Tier 1 capital to average assets (as defined in the regulation). Management believes that the Company and its subsidiary banks meet all capital adequacy requirements to which they are subject. As of December 31, 2021, the most recent notifications from Federal bank regulatory agencies categorized the Company's subsidiary banks as “well capitalized” under the regulatory framework for PCA. To be categorized as well capitalized, the Company and its subsidiary banks must maintain total risk-based, Tier 1 risk-based, common equity Tier 1 capital and Tier 1 leverage ratios as set forth in the table below. There are no conditions or events since that notification that management believes have changed the capital category of the Company or its subsidiary banks. In the first quarter of 2020, U.S. Federal regulatory authorities issued an interim final rule that provided banking organizations that adopt CECL during the 2020 calendar year with the option to delay for two years the estimated impact of CECL on regulatory capital relative to regulatory capital determined under the prior incurred loss methodology, followed by a three-year transition period to phase out the aggregate amount of the capital benefit provided during the initial two-year delay (i.e., a five- year transition in total). In connection with our adoption of CECL on January 1, 2020, we elected to utilize the five-year CECL transition. The following table presents actual and required capital ratios as of December 31, 2021 and December 31, 2020 for Tompkins and its four banking subsidiaries. The minimum capital amounts required under Basel III includes the capital conservation buffer of 2.5%, which must be added to each of the minimum required risk-based capital ratios (Total capital to risk-weighted assets, Common equity Tier 1 capital to risk weighted assets and Tier 1 capital to risk weighted assets). Capital levels required to be considered well capitalized are based upon prompt corrective action regulations, as amended to reflect the changes under the Basel III Capital Rules. Actual capital amounts and ratios of the Company and its subsidiary banks are as follows:
| Actual | Minimum Capital Required- Basel III Fully-Phased-In | Required to be Considered Well Capitalized
(dollar amounts in thousands) | Amount/Ratio | Amount/Ratio | Amount/Ratio
December 31, 2021 |  |  |
Total Capital (to risk-weighted assets) |  |  |
The Company (consolidated) | $735,187 /14.2% | $524,345/>10.5% | $516,519/>10.0%
Trust Company | $219,976/14.8% | $156,631/>10.5% | $149,172/>10.0%
Castile | $160,757/12.2% | $138,104/>10.5% | $131,527/>10.0%
Mahopac | $136,247/12.7% | $112,649/>10.5% | $107,285/>10.0%
VIST | $173,889/13.6% | $134,403/>10.5% | $128,003/>10.0%
Common Equity Tier 1 Capital (to risk-weighted assets) |
The Company (consolidated) | $688,425/13.3% | $361,563/>7.0% | $335,737/>6.5%
Trust Company | $207,632/13.9% | $104,421/>7.0% | $96,962/>6.5%
Castile | $149,154/11.3% | $92,069/>7.0% | $85,493/>6.5%
Mahopac | $126,718/11.8% | $75,100/>7.0% | $69,735/>6.5%
VIST | $163,145/12.8% | $89,602/>7.0% | $83,202/>6.5%
Tier 1 Capital (to risk-weighted assets) |  |  |
The Company (consolidated) | $688,425/13.3% | $439,041/>8.5% | $413,215/>8.0%
Trust Company | $207,632/13.9% | $126,797/>8.5% | $119,338/>8.0%
Castile | $149,154/11.3% | $111,798/>8.5% | $105,222/>8.0%
Mahopac | $126,718/11.8% | $91,192/>8.5% | $85,282/>8.0%
VIST | $163,145/12.8% | $108,803/>8.5% | $102,403/>8.0%
Tier 1 Capital (to average assets) |  |  |
The Company (consolidated) | $688,425/8.7% | $315,820/>4.0% | $394,775/>5.0%
Trust Company | $207,632/8.4% | $99,000/>4.0% | $123,751/>5.0%
Castile | $149,154/7.9% | $75,935/>4.0% | $94,918/>5.0%
Mahopac | $126,718/8.1% | $62,815/>4.0% | $78,519/>5.0%
VIST | $163,145/8.4% | $77,953/>4.0% | $97,441/>5.0%
December 31, 2020 |  |  |
Total Capital (to risk-weighted assets) |  |  |
The Company (consolidated) | $720,755 /14.4% | $525,755/>10.5% | $500,719/>10.0%
Trust Company | $210,756/14.7% | $150,482/>10.5% | $143,316/>10.0%
Castile | $157,514/12.6% | $131,034/>10.5% | $124,795/>10.0%
Mahopac | $133,969/13.0% | $108,129/>10.5% | $102,980/>10.0%
VIST | $175,931/13.7% | $134,615/>10.5% | $128,205/>10.0%
Common Equity Tier 1 Capital (to risk-weighted assets)
The Company (consolidated) | $654,144/13.1% | $350,503/>7.0% | $325,467/>6.5%
Trust Company | $196,522/13.7% | $100,321/>7.0% | $93,156/>6.5%
Castile | $144,448/11.6% | $87,356/>7.0% | $81,117/>6.5%
Mahopac | $122,393/11.9% | $72,086/>7.0% | $66,937/>6.5%
VIST | $163,895/12.8% | $89,743/>7.0% | $83,333/>6.5%
Tier 1 Capital (to risk-weighted assets) |  |  |
The Company (consolidated) | $667,364/13.3% | $425,611/>8.5% | $400,575/>8.0%
Trust Company | $196,522/13.7% | $121,819/>8.5% | $114,653/>8.0%
Castile | $144,448/11.6% | $106,076/>8.5% | $99,836/>8.0%
Mahopac | $122,393/11.9% | $87,533/>8.5% | $82,384/>8.0%
VIST | $163,895/12.8% | $108,794/>8.5% | $102,564/>8.0%
Tier 1 Capital (to average assets) |  |  |
The Company (consolidated) | $667,364/8.8% | $305,083/>4.0% | $381,354/>5.0%
Trust Company | $196,522/8.2% | $95,691/>4.0% | $119,614/>5.0%
Castile | $144,448/8.1% | $71,605/>4.0% | $89,507/>5.0%
Mahopac | $122,393/8.2% | $59,742/>4.0% | $74,678/>5.0%
VIST | $163,895/8.4% | $77,874/>4.0% | $83,333/>5.0%

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1F -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958575-112826 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958569-112826 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1D -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958573-112826 + Details
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