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Note 7 - Capital Requirements - Comparison of Capital of Company and Bank with Minimum Regulatory Guidelines (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
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Total Capital (to Risk-Weighted Assets), actual amount | $ 83,591 | $ 74,697
Total Capital (to Risk-Weighted Assets), actual ratio | 14.57% | 13.62%
Total Capital (to Risk-Weighted Assets), minimum capital requirement amount | $ 45,903 | $ 43,859
Total Capital (to Risk-Weighted Assets), minimum capital requirement ratio | 8.00% | 8.00%
Total Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, amount | $ 57,379 | $ 54,824
Total Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, ratio | 10.00% | 10.00%
Tier 1 Capital (to Risk-Weighted Assets), actual amount | $ 78,679 | $ 69,688
Tier 1 Capital (to Risk-Weighted Assets), actual ratio | 13.71% | 12.71%
Tier 1 Capital (to Risk-Weighted Assets), minimum capital requirement amount | $ 34,428 | $ 32,894
Tier 1 Capital (to Risk-Weighted Assets), minimum capital requirement ratio | 6.00% | 6.00%
Tier 1 Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, amount | $ 45,903 | $ 43,859
Tier 1 Capital (to Risk-Weighted Assets), minimum to be well capitalized under prompt corrective action provisions, ratio | 8.00% | 8.00%
Common Equity Tier 1 Capital (to Risk-Weighted Assets), actual amount | $ 78,679 | $ 69,688
Common Equity Tier 1 Capital (to Risk-Weighted Assets), actual ratio | 13.71% | 12.71%
Common Equity Tier 1 Capital (to Risk-Weighted Assets), minimum capital requirement amount | $ 25,821 | $ 24,671
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 | $ 37,296 | $ 35,635
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 | $ 78,679 | $ 69,688
Tier 1 Capital (to Average Assets), actual ratio | 10.09% | 9.26%
Tier 1 Capital (to Average Assets), minimum capital requirement amount | $ 31,205 | $ 30,100
Tier 1 Capital (to Average Assets), minimum capital requirement ratio | 4.00% | 4.00%
Tier 1 Capital (to Average Assets), minimum to be well capitalized under prompt corrective action provisions, amount | $ 39,006 | $ 37,625
Tier 1 Capital (to Average Assets), minimum to be well capitalized under prompt corrective action provisions, ratio | 5.00% | 5.00%

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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 The Common Equity Tier 1 capital ratio (Common equity tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action. + References No definition available. + Details
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- Definition The amount of total capital as defined in the regulations. + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=d3e65071-112826 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 Reference 4: 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 minimum amount of Total 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 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 Amount of Common Equity Tier One Risk-based Capital, as defined by regulatory framework. + References Reference 1: 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 + Details
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- Definition The minimum Tier One Capital Ratio (Tier one 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 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 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 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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