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Note 13 - Regulatory Matters - Actual Capital Amounts and Ratios (Details) $ in Thousands | Sep. 30, 2021 USD ($) | Dec. 31, 2020 USD ($)
--- | --- | ---
Capital | $ 204,524 |
Capital to risk weighted assets | 0.153 |
Capital required for capital adequacy | $ 140,431 |
Capital required for capital adequacy to risk weighted assets | 10.50% |
Tier one risk based capital | $ 187,806 |
Tier one risk based capital to risk weighted assets | 0.140 |
Tier one risk based capital required for capital adequacy | $ 113,682 |
Tier one risk based capital required for capital adequacy to risk weighted assets | 8.50% |
Tier one leverage capital | $ 187,806 |
Tier one leverage capital to average assets | 0.092 |
Tier one leverage capital required for capital adequacy | $ 81,851 |
Tier one leverage capital required for capital adequacy to risk weighted assets | 0.0400 |
Common equity tier one capital | $ 187,806 |
Common equity tier one risk based capital to risk weighted assets | 0.140 |
Common equity tier one capital required for capital adequacy | $ 93,621 |
Common equity tier one risk based capital required for capital adequacy to risk weighted assets | 7.00% |
Boone Bank and Trust [Member] |  |
Capital | $ 15,611 |
Capital to risk weighted assets | 0.160 |
Capital required for capital adequacy | $ 10,269 |
Capital required for capital adequacy to risk weighted assets | 10.50% |
Capital required to be well capitalized | $ 9,780 |
Capital required to be well capitalized to risk weighted assets | 0.100 |
Tier one risk based capital | $ 14,665 |
Tier one risk based capital to risk weighted assets | 0.150 |
Tier one risk based capital required for capital adequacy | $ 8,313 |
Tier one risk based capital required for capital adequacy to risk weighted assets | 8.50% |
Tier one risk based capital required to be well capitalized | $ 7,824 |
Tier one risk based capital required to be well capitalized to risk weighted assets | 0.080 |
Tier one leverage capital | $ 14,665 | $ 13,967
Tier one leverage capital to average assets | 0.094 | 0.092
Tier one leverage capital required for capital adequacy | $ 6,269 |
Tier one leverage capital required for capital adequacy to risk weighted assets | 0.0400 |
Tier one leverage capital required to be well capitalized | $ 7,836 | $ 12,170
Tier one leverage capital required to be well capitalized to average assets | 0.050 | 0.080
Common equity tier one capital | $ 14,665 |
Common equity tier one risk based capital to risk weighted assets | 0.150 |
Common equity tier one capital required for capital adequacy | $ 6,846 |
Common equity tier one risk based capital required for capital adequacy to risk weighted assets | 7.00% |
Common equity tier one capital required to be well capitalized | $ 6,357 |
Common equity tier one capital required to be well capitalized to risk weighted assets | 6.50% |
First National Bank [Member] | Also Conducts Business Out of 3 Full Service Offices in Des Moines Metro Area [Member] |  |
Capital | $ 101,785 |
Capital to risk weighted assets | 0.147 |
Capital required for capital adequacy | $ 72,926 |
Capital required for capital adequacy to risk weighted assets | 10.50% |
Capital required to be well capitalized | $ 69,454 |
Capital required to be well capitalized to risk weighted assets | 0.100 |
Tier one risk based capital | $ 93,084 |
Tier one risk based capital to risk weighted assets | 0.134 |
Tier one risk based capital required for capital adequacy | $ 59,035 |
Tier one risk based capital required for capital adequacy to risk weighted assets | 8.50% |
Tier one risk based capital required to be well capitalized | $ 55,563 |
Tier one risk based capital required to be well capitalized to risk weighted assets | 0.080 |
Tier one leverage capital | $ 93,084 | $ 86,071
Tier one leverage capital to average assets | 0.088 | 0.086
Tier one leverage capital required for capital adequacy | $ 42,354 |
Tier one leverage capital required for capital adequacy to risk weighted assets | 0.0400 |
Tier one leverage capital required to be well capitalized | $ 52,942 | $ 80,393
Tier one leverage capital required to be well capitalized to average assets | 0.050 | 0.080
Common equity tier one capital | $ 93,084 |
Common equity tier one risk based capital to risk weighted assets | 0.134 |
Common equity tier one capital required for capital adequacy | $ 48,617 |
Common equity tier one risk based capital required for capital adequacy to risk weighted assets | 7.00% |
Common equity tier one capital required to be well capitalized | $ 45,145 |
Common equity tier one capital required to be well capitalized to risk weighted assets | 6.50% |
Iowa State Savings Bank [Member] |  |
Capital | $ 23,755 |
Capital to risk weighted assets | 0.165 |
Capital required for capital adequacy | $ 15,102 |
Capital required for capital adequacy to risk weighted assets | 10.50% |
Capital required to be well capitalized | $ 14,383 |
Capital required to be well capitalized to risk weighted assets | 0.100 |
Tier one risk based capital | $ 22,734 |
Tier one risk based capital to risk weighted assets | 0.158 |
Tier one risk based capital required for capital adequacy | $ 12,226 |
Tier one risk based capital required for capital adequacy to risk weighted assets | 8.50% |
Tier one risk based capital required to be well capitalized | $ 11,507 |
Tier one risk based capital required to be well capitalized to risk weighted assets | 0.080 |
Tier one leverage capital | $ 22,734 | $ 21,610
Tier one leverage capital to average assets | 0.094 | 0.094
Tier one leverage capital required for capital adequacy | $ 9,631 |
Tier one leverage capital required for capital adequacy to risk weighted assets | 0.0400 |
Tier one leverage capital required to be well capitalized | $ 12,038 | $ 18,321
Tier one leverage capital required to be well capitalized to average assets | 0.050 | 0.080
Common equity tier one capital | $ 22,734 |
Common equity tier one risk based capital to risk weighted assets | 0.158 |
Common equity tier one capital required for capital adequacy | $ 10,068 |
Common equity tier one risk based capital required for capital adequacy to risk weighted assets | 7.00% |
Common equity tier one capital required to be well capitalized | $ 9,349 |
Common equity tier one capital required to be well capitalized to risk weighted assets | 6.50% |
Reliance State Bank [Member] | Conducts Business Out of Offices at Story City, Garner, and Kleme, Iowa [Member] |  |
Capital | $ 26,824 |
Capital to risk weighted assets | 0.144 |
Capital required for capital adequacy | $ 19,581 |
Capital required for capital adequacy to risk weighted assets | 10.50% |
Capital required to be well capitalized | $ 18,648 |
Capital required to be well capitalized to risk weighted assets | 0.100 |
Tier one risk based capital | $ 24,491 |
Tier one risk based capital to risk weighted assets | 0.131 |
Tier one risk based capital required for capital adequacy | $ 15,851 |
Tier one risk based capital required for capital adequacy to risk weighted assets | 8.50% |
Tier one risk based capital required to be well capitalized | $ 14,919 |
Tier one risk based capital required to be well capitalized to risk weighted assets | 0.080 |
Tier one leverage capital | $ 24,491 | $ 23,278
Tier one leverage capital to average assets | 0.091 | 0.094
Tier one leverage capital required for capital adequacy | $ 10,731 |
Tier one leverage capital required for capital adequacy to risk weighted assets | 0.0400 |
Tier one leverage capital required to be well capitalized | $ 13,413 | $ 19,741
Tier one leverage capital required to be well capitalized to average assets | 0.050 | 0.080
Common equity tier one capital | $ 24,491 |
Common equity tier one risk based capital to risk weighted assets | 0.131 |
Common equity tier one capital required for capital adequacy | $ 13,054 |
Common equity tier one risk based capital required for capital adequacy to risk weighted assets | 7.00% |
Common equity tier one capital required to be well capitalized | $ 12,121 |
Common equity tier one capital required to be well capitalized to risk weighted assets | 6.50% |
State Bank and Trust [Member] |  |
Capital | $ 20,327 |
Capital to risk weighted assets | 0.150 |
Capital required for capital adequacy | $ 14,247 |
Capital required for capital adequacy to risk weighted assets | 10.50% |
Capital required to be well capitalized | $ 13,568 |
Capital required to be well capitalized to risk weighted assets | 0.100 |
Tier one risk based capital | $ 18,643 |
Tier one risk based capital to risk weighted assets | 0.137 |
Tier one risk based capital required for capital adequacy | $ 11,533 |
Tier one risk based capital required for capital adequacy to risk weighted assets | 8.50% |
Tier one risk based capital required to be well capitalized | $ 10,855 |
Tier one risk based capital required to be well capitalized to risk weighted assets | 0.080 |
Tier one leverage capital | $ 18,643 | $ 16,564
Tier one leverage capital to average assets | 0.087 | 0.085
Tier one leverage capital required for capital adequacy | $ 8,530 |
Tier one leverage capital required for capital adequacy to risk weighted assets | 0.0400 |
Tier one leverage capital required to be well capitalized | $ 10,663 | $ 15,657
Tier one leverage capital required to be well capitalized to average assets | 0.050 | 0.080
Common equity tier one capital | $ 18,643 |
Common equity tier one risk based capital to risk weighted assets | 0.137 |
Common equity tier one capital required for capital adequacy | $ 9,498 |
Common equity tier one risk based capital required for capital adequacy to risk weighted assets | 7.00% |
Common equity tier one capital required to be well capitalized | $ 8,819 |
Common equity tier one capital required to be well capitalized to risk weighted assets | 6.50% |
United Bank and Trust [Member] |  |
Capital | $ 11,873 |
Capital to risk weighted assets | 0.157 |
Capital required for capital adequacy | $ 7,926 |
Capital required for capital adequacy to risk weighted assets | 10.50% |
Capital required to be well capitalized | $ 7,549 |
Capital required to be well capitalized to risk weighted assets | 0.100 |
Tier one risk based capital | $ 10,927 |
Tier one risk based capital to risk weighted assets | 0.145 |
Tier one risk based capital required for capital adequacy | $ 6,417 |
Tier one risk based capital required for capital adequacy to risk weighted assets | 8.50% |
Tier one risk based capital required to be well capitalized | $ 6,039 |
Tier one risk based capital required to be well capitalized to risk weighted assets | 0.080 |
Tier one leverage capital | $ 10,927 | $ 10,539
Tier one leverage capital to average assets | 0.091 | 0.092
Tier one leverage capital required for capital adequacy | $ 4,799 |
Tier one leverage capital required for capital adequacy to risk weighted assets | 0.0400 |
Tier one leverage capital required to be well capitalized | $ 5,999 | $ 9,180
Tier one leverage capital required to be well capitalized to average assets | 0.050 | 0.080
Common equity tier one capital | $ 10,927 |
Common equity tier one risk based capital to risk weighted assets | 0.145 |
Common equity tier one capital required for capital adequacy | $ 5,284 |
Common equity tier one risk based capital required for capital adequacy to risk weighted assets | 7.00% |
Common equity tier one capital required to be well capitalized | $ 4,907 |
Common equity tier one capital required to be well capitalized to risk weighted assets | 6.50% |

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