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Note 7 - Capital Requirements (Tables) | 3 Months Ended
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Mar. 31, 2021
Notes Tables |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] |
|  | Actual |  |  | Minimum Capital Requirement |  |  | Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions |
|  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
March 31, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to Risk-Weighted Assets) |  | $ | 94,044 |  |  |  | 16.05 | % |  | $ | 46,883 |  |  |  | 8.00 | % |  | $ | 58,604 |  |  |  | 10.00 | %
Tier 1 Capital (to Risk-Weighted Assets) |  | $ | 86,717 |  |  |  | 14.80 | % |  | $ | 35,162 |  |  |  | 6.00 | % |  | $ | 46,883 |  |  |  | 8.00 | %
Common Equity Tier 1 Capital (to Risk-Weighted Assets) |  | $ | 86,717 |  |  |  | 14.80 | % |  | $ | 26,372 |  |  |  | 4.50 | % |  | $ | 38,093 |  |  |  | 6.50 | %
Tier 1 Capital (to Average Assets) |  | $ | 86,717 |  |  |  | 8.78 | % |  | $ | 39,502 |  |  |  | 4.00 | % |  | $ | 49,377 |  |  |  | 5.00 | %
December 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to Risk-Weighted Assets) |  | $ | 91,243 |  |  |  | 15.82 | % |  | $ | 46,129 |  |  |  | 8.00 | % |  | $ | 57,661 |  |  |  | 10.00 | %
Tier 1 Capital (to Risk-Weighted Assets) |  | $ | 84,032 |  |  |  | 14.57 | % |  | $ | 34,597 |  |  |  | 6.00 | % |  | $ | 46,129 |  |  |  | 8.00 | %
Common Equity Tier 1 Capital (to Risk-Weighted Assets) |  | $ | 84,032 |  |  |  | 14.57 | % |  | $ | 25,948 |  |  |  | 4.50 | % |  | $ | 37,480 |  |  |  | 6.50 | %
Tier 1 Capital (to Average Assets) |  | $ | 84,032 |  |  |  | 8.80 | % |  | $ | 38,187 |  |  |  | 4.00 | % |  | $ | 47,733 |  |  |  | 5.00 | %

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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://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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