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Note 12 - Regulatory Matters - Actual Capital Levels and Minimum Levels (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Consolidated Entities [Member] |  |
Total capital, amount | $ 404,521 | $ 379,417
Total capital, ratio | 13.10% | 12.90%
Total capital minimum required for capital adequacy, amount | $ 248,013 | $ 235,723
Total capital minimum required for capital adequacy, ratio | 8.00% | 8.00%
Tier 1 capital, amount | $ 382,829 | $ 359,915
Tier 1 capital, ratio | 12.40% | 12.20%
Tier 1 capital minimum required for capital adequacy, amount | $ 186,010 | $ 176,792
Tier 1 capital minimum required for capital adequacy, ratio | 6.00% | 6.00%
Common equity tier 1, amount | $ 338,874 | $ 316,472
Common equity tier 1, ratio | 10.90% | 10.70%
Common equity tier 1 minimum required for capital adequacy, amount | $ 139,508 | $ 132,594
Common equity tier 1 capital minimum required for capital adequacy, ratio | 4.50% | 4.50%
Tier 1 capital to average assets, amount | $ 382,829 | $ 359,915
Tier 1 capital to average assets, ratio | 11.80% | 11.30%
Tier 1 capital to average assets, minimum required for capital adequacy, amount | $ 130,188 | $ 127,782
Tier 1 capital to average assets minimum required for capital adequacy, ratio | 4.00% | 4.00%
Bank [Member] |  |
Total capital, amount | $ 396,382 | $ 371,346
Total capital, ratio | 12.80% | 12.60%
Total capital minimum required for capital adequacy, amount | $ 247,819 | $ 235,515
Total capital minimum required for capital adequacy, ratio | 8.00% | 8.00%
Total capital to be well capitalized, amount | $ 309,774 | $ 294,393
Total capital to be well capitalized, ratio | 10.00% | 10.00%
Tier 1 capital, amount | $ 374,690 | $ 351,844
Tier 1 capital, ratio | 12.10% | 12.00%
Tier 1 capital minimum required for capital adequacy, amount | $ 185,865 | $ 176,636
Tier 1 capital minimum required for capital adequacy, ratio | 6.00% | 6.00%
Tier 1 capital to be well capitalized, amount | $ 247,819 | $ 235,515
Tier 1 capital to be well capitalized, ratio | 8.00% | 8.00%
Common equity tier 1, amount | $ 374,690 | $ 351,844
Common equity tier 1, ratio | 12.10% | 12.00%
Common equity tier 1 minimum required for capital adequacy, amount | $ 139,399 | $ 132,477
Common equity tier 1 capital minimum required for capital adequacy, ratio | 4.50% | 4.50%
Common equity tier 1 capital to be well capitalized, amount | $ 201,353 | $ 191,356
Common equity tier 1 capital to be well capitalized, ratio | 6.50% | 6.50%
Tier 1 capital to average assets, amount | $ 374,690 | $ 351,844
Tier 1 capital to average assets, ratio | 11.50% | 11.00%
Tier 1 capital to average assets, minimum required for capital adequacy, amount | $ 130,125 | $ 127,698
Tier 1 capital to average assets minimum required for capital adequacy, ratio | 4.00% | 4.00%
Tier 1 capital to average assets to be well capitalized, amount | $ 162,656 | $ 159,623
Tier 1 capital to average assets to be well capitalized, ratio | 5.00% | 5.00%

X
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- Definition 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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