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Note 12 - Regulatory Capital - Regulatory Capital Requirements (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
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Tier 1 capital to adjusted average assets, minimum required to be well capitalized, ratio | 7.50% |
Parent Company [Member] |  |
Common equity tier 1 capital to risk-weighted assets, amount | $ 110.8 | $ 92.8
Common equity tier 1 capital to risk-weighted assets, ratio | 11.80% | 11.60%
Common equity tier 1 capital to risk-weighted assets, required for capital adequacy purposes, amount | $ 42.4 | $ 26.1
Common equity tier 1 capital to risk-weighted assets, minimum required for capital adequacy purposes, ratio | 4.50% | 4.50%
Common equity tier 1 capital to risk-weighted assets, minimum required to be well capitalized, amount |  |
Common equity tier 1 capital to risk-weighted assets, minimum required to be well capitalized, ratio |  |
Tier 1 capital to risk-weighted assets, amount | $ 110.8 | $ 92.8
Tier 1 capital to risk-weighted assets, ratio | 11.80% | 11.60%
Tier 1 capital to risk-weighted assets, required for capital adequacy purposes, amount | $ 56.5 | $ 42.2
Tier 1 capital to risk-weighted assets, minimum required for capital adequacy purposes, ratio | 6.00% | 6.00%
Tier 1 capital to risk-weighted assets, minimum required to be well capitalized, amount |  |
Tier 1 capital to risk-weighted assets, minimum required to be well capitalized, ratio |  |
Total capital to risk-weighted assets, amount | $ 119.8 | $ 100.8
Total capital to risk-weighted assets, ratio | 12.70% | 12.60%
Total capital to risk-weighted assets, required for capital adequacy purposes, amount | $ 75.3 | $ 64.2
Total capital to risk-weighted assets, minimum required for capital adequacy purposes, ratio | 8.00% | 8.00%
Total capital to risk-weighted assets, minimum required to be well capitalized, amount |  |
Total capital to risk-weighted assets, minimum required to be well capitalized, ratio |  |
Tier 1 capital to adjusted average assets, amount | $ 110.8 | $ 92.8
Tier 1 capital to adjusted average assets, ratio | 8.50% | 8.60%
Tier 1 capital to adjusted average assets, required for capital adequacy purposes, amount | $ 52.3 | $ 43.2
Tier 1 capital to adjusted average assets, minimum required for capital adequacy purposes, ratio | 4.00% | 4.00%
Tier 1 capital to adjusted average assets, minimum required to be well capitalized, amount |  |
Tier 1 capital to adjusted average assets, minimum required to be well capitalized, ratio |  |
People's Bank SB [Member] |  |
Common equity tier 1 capital to risk-weighted assets, amount | $ 108.9 | $ 89.9
Common equity tier 1 capital to risk-weighted assets, ratio | 11.60% | 11.20%
Common equity tier 1 capital to risk-weighted assets, required for capital adequacy purposes, amount | $ 42.4 | $ 36.2
Common equity tier 1 capital to risk-weighted assets, minimum required for capital adequacy purposes, ratio | 4.50% | 4.50%
Common equity tier 1 capital to risk-weighted assets, minimum required to be well capitalized, amount | $ 61.2 | $ 52.2
Common equity tier 1 capital to risk-weighted assets, minimum required to be well capitalized, ratio | 6.50% | 6.50%
Tier 1 capital to risk-weighted assets, amount | $ 108.9 | $ 89.9
Tier 1 capital to risk-weighted assets, ratio | 11.60% | 11.20%
Tier 1 capital to risk-weighted assets, required for capital adequacy purposes, amount | $ 56.5 | $ 48.2
Tier 1 capital to risk-weighted assets, minimum required for capital adequacy purposes, ratio | 6.00% | 6.00%
Tier 1 capital to risk-weighted assets, minimum required to be well capitalized, amount | $ 75.3 | $ 64.3
Tier 1 capital to risk-weighted assets, minimum required to be well capitalized, ratio | 8.00% | 8.00%
Total capital to risk-weighted assets, amount | $ 117.9 | $ 97.9
Total capital to risk-weighted assets, ratio | 12.50% | 12.20%
Total capital to risk-weighted assets, required for capital adequacy purposes, amount | $ 75.3 | $ 64.3
Total capital to risk-weighted assets, minimum required for capital adequacy purposes, ratio | 8.00% | 8.00%
Total capital to risk-weighted assets, minimum required to be well capitalized, amount | $ 94.1 | $ 80.3
Total capital to risk-weighted assets, minimum required to be well capitalized, ratio | 10.00% | 10.00%
Tier 1 capital to adjusted average assets, amount | $ 108.9 | $ 89.9
Tier 1 capital to adjusted average assets, ratio | 8.30% | 8.40%
Tier 1 capital to adjusted average assets, required for capital adequacy purposes, amount | $ 52.3 | $ 42.9
Tier 1 capital to adjusted average assets, minimum required for capital adequacy purposes, ratio | 4.00% | 4.00%
Tier 1 capital to adjusted average assets, minimum required to be well capitalized, amount | $ 65.3 | $ 53.6
Tier 1 capital to adjusted average assets, minimum required to be well capitalized, ratio | 5.00% | 5.00%

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- Definition The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=d3e65071-112826 + Details
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- Definition The amount of Total Capital required to be categorized as well as capitalized under the regulatory framework for prompt corrective action. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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- Definition The minimum amount of Tier 1 Leverage Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=d3e65071-112826 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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- Definition The minimum amount of Tier 1 Risk Based Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=117337116&loc=d3e65071-112826 + Details
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