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Note 23 - Regulatory Matters - Risk Based Capital Amounts and Ratios (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Total risk-based capital, actual amount [1] $ 418,460 $ 396,019
Total risk-based capital, actual ratio [1] 12.85% 13.91%
Total risk-based capital, minimum for adequately capitalized amount [1] $ 260,448 $ 227,714
Total risk-based capital, minimum for adequately capitalized ratio [1] 8.00% 8.00%
Common Equity Tier 1 risk-based capital, actual amount $ 391,319 $ 370,135
Common Equity Tier 1 risk-based capital, actual ratio 12.02% 13.00%
Common Equity Tier 1 risk-based capital, minimum for adequately capitalized amount $ 146,502 $ 128,089
Common Equity Tier 1 risk-based capital, minimum for adequately capitalized ratio 4.50% 4.50%
Tier 1 risk-based capital, actual amount [1] $ 391,319 $ 370,135
Tier 1 risk-based capital, actual ratio [1] 12.02% 13.00%
Tier 1 risk-based capital, minimum for adequately capitalized amount [1] $ 195,336 $ 170,785
Tier 1 risk-based capital, minimum for adequately capitalized ratio [1] 6.00% 6.00%
Leverage, actual amount [2] $ 391,319 $ 370,135
Leverage, actual ratio [2] 10.60% 11.33%
Leverage, minimum for adequately capitalized amount [2] $ 147,733 $ 130,698
Leverage, minimum for adequately capitalized ratio [2] 4.00% 4.00%
Subsidiaries [Member]    
Total risk-based capital, actual amount [1] $ 396,299 $ 385,637
Total risk-based capital, actual ratio [1] 12.20% 13.56%
Total risk-based capital, minimum for adequately capitalized amount [1] $ 259,823 $ 227,462
Total risk-based capital, minimum for adequately capitalized ratio [1] 8.00% 8.00%
Total risk-based capital, minimum for well capitalized amount [1] $ 324,778 $ 284,327
Total risk-based capital, minimum for well capitalized ratio [1] 10.00% 10.00%
Common Equity Tier 1 risk-based capital, actual amount $ 369,158 $ 359,753
Common Equity Tier 1 risk-based capital, actual ratio 11.37% 12.65%
Common Equity Tier 1 risk-based capital, minimum for adequately capitalized amount $ 146,150 $ 127,947
Common Equity Tier 1 risk-based capital, minimum for adequately capitalized ratio 4.50% 4.50%
Common Equity Tier 1 risk-based capital, minimum for well capitalized amount $ 211,106 $ 184,813
Common Equity Tier 1 risk-based capital, minimum for well capitalized ratio 6.50% 6.50%
Tier 1 risk-based capital, actual amount [1] $ 369,158 $ 359,753
Tier 1 risk-based capital, actual ratio [1] 11.37% 12.65%
Tier 1 risk-based capital, minimum for adequately capitalized amount [1] $ 194,867 $ 170,596
Tier 1 risk-based capital, minimum for adequately capitalized ratio [1] 6.00% 6.00%
Tier 1 risk-based capital, minimum for well capitalized amount [1] $ 259,823 $ 227,462
Tier 1 risk-based capital, minimum for well capitalized ratio [1] 8.00% 8.00%
Leverage, actual amount [2] $ 369,158 $ 359,753
Leverage, actual ratio [2] 10.67% 11.02%
Leverage, minimum for adequately capitalized amount [2] $ 138,392 $ 130,569
Leverage, minimum for adequately capitalized ratio [2] 4.00% 4.00%
Leverage, minimum for well capitalized amount [2] $ 172,990 $ 163,211
Leverage, minimum for well capitalized ratio [2] 5.00% 5.00%
[1] Ratio is computed in relation to risk-weighted assets.
[2] Ratio is computed in relation to average assets.