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Note 7 - Capital Requirements - Comparison of Capital of Company and Bank with Minimum Regulatory Guidelines (Details) $ in Thousands | Sep. 30, 2020 USD ($) | Dec. 31, 2019 USD ($)
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Total Capital (to Risk-Weighted Assets), actual amount | $ 89,155 | $ 85,439
Total Capital (to Risk-Weighted Assets), actual ratio | 0.1534 | 0.1484
Total Capital (to Risk-Weighted Assets), minimum capital requirement amount | $ 46,500 | $ 46,046
Total Capital (to Risk-Weighted Assets), minimum capital requirement ratio | 0.0800 | 0.0800
Total Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, amount | $ 58,125 | $ 57,557
Total Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, ratio | 0.1000 | 0.1000
Tier 1 Capital (to Risk-Weighted Assets), actual amount | $ 81,883 | $ 80,505
Tier 1 Capital (to Risk-Weighted Assets), actual ratio | 0.1409 | 0.1399
Tier 1 Capital (to Risk-Weighted Assets), minimum capital requirement amount | $ 34,875 | $ 34,534
Tier 1 Capital (to Risk-Weighted Assets), minimum capital requirement ratio | 0.0600 | 0.0600
Tier 1 Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, amount | $ 46,500 | $ 46,046
Tier 1 Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, ratio | 0.0800 | 0.0800
Common Equity Tier 1 Capital (to Risk-Weighted Assets), actual amount | $ 81,883 | $ 80,505
Common Equity Tier 1 Capital (to Risk-Weighted Assets), actual ratio | 0.1409 | 0.1399
Common Equity Tier 1 Capital (to Risk-Weighted Assets), minimum capital requirement amount | $ 26,156 | $ 25,901
Common Equity Tier 1 Capital (to Risk-Weighted Assets), minimum capital requirement ratio | 4.50% | 4.50%
Common Equity Tier 1 Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, amount | $ 37,782 | $ 37,412
Common Equity Tier 1 Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, ratio | 6.50% | 6.50%
Tier 1 Capital (to Average Assets), actual amount | $ 81,883 | $ 80,505
Tier 1 Capital (to Average Assets), actual ratio | 0.0867 | 0.1013
Tier 1 Capital (to Average Assets), minimum capital requirement amount | $ 37,776 | $ 31,799
Tier 1 Capital (to Average Assets), minimum capital requirement ratio | 0.0400 | 0.0400
Tier 1 Capital (to Average Assets), minimum to be well capitalized under prompt corrective action provisions, amount | $ 47,220 | $ 39,749
Tier 1 Capital (to Average Assets), minimum to be well capitalized under prompt corrective action provisions, ratio | 0.0500 | 0.0500

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- Definition The minimum Common Equity Tier One Capital Ratio (Common equity tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References No definition available. + Details
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- Definition Amount of total capital as defined by regulatory framework. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998 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)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47080-110998 + Details
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