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Note 14 - Regulatory Capital
 6 Months Ended
Jun. 30, 2017
Notes to Financial Statements  
Regulatory Capital Requirements under Banking Regulations [Text Block]
14.
            
Regulatory Capital
 
Under current capital regulations, the Bank is required to comply with
four
separate capital adequacy standards. As of
June 30, 2017,
the Bank continued to be categorized as “well-capitalized” under the prompt corrective action regulations and continued to exceed all regulatory capital requirements. In
2016,
a Capital Conservation Buffer (“CCB”) requirement became effective for banks. The CCB is designed to establish a capital range above minimum capital requirements and impose constraints on dividends, share buybacks and discretionary bonus payments when capital levels fall below prescribed levels. The minimum CCB in
2017
is
1.25%
and increases
0.625%
annually through
2019
to
2.5%.
The CCB for the Bank at
June 30, 2017
was
6.1%.
 
Set forth below is a summary of the Bank’s compliance with banking regulatory capital standards.
 
    June 30, 2017   December 31, 2016
        Percent of       Percent of
    Amount   Assets   Amount   Assets
    (Dollars in thousands)
                 
Tier I (leverage) capital:                                
Capital level   $
624,074
      
10.04
 %   $
607,033
      
10.12
 %
Requirement to be well capitalized    
310,889
      
5.00
      
299,848
      
5.00
  
Excess    
313,185
      
5.04
      
307,185
      
5.12
  
                                 
Common Equity Tier I risk-based capital:                                
Capital level   $
624,074
      
13.58
 %   $
607,033
      
14.12
 %
Requirement to be well capitalized    
298,648
      
6.50
      
279,443
      
6.50
  
Excess    
325,426
      
7.08
      
327,590
      
7.62
  
                                 
Tier 1 risk-based capital:                                
Capital level   $
624,074
      
13.58
 %   $
607,033
      
14.12
 %
Requirement to be well capitalized    
367,567
      
8.00
      
343,930
      
8.00
  
Excess    
256,507
      
5.58
      
263,103
      
6.12
  
                                 
Total risk-based capital:                                
Capital level   $
646,231
      
14.07
 %   $
629,262
      
14.64
 %
Requirement to be well capitalized    
459,459
      
10.00
      
429,913
      
10.00
  
Excess    
186,772
      
4.07
      
199,349
      
4.64
  
 
The Holding Company is subject to the same regulatory capital requirements as the Bank. As of
June 30, 2017,
the Holding Company continued to be categorized as “well-capitalized” under the prompt corrective action regulations and continued to exceed all regulatory capital requirements. The CCB for the Holding Company at
June 30, 2017
was
6.2%.
 
Set forth below is a summary of the Holding Company’s compliance with banking regulatory capital standards.
 
    June 30, 2017   December 31, 2016
        Percent of       Percent of
    Amount   Assets   Amount   Assets
    (Dollars in thousands)
                 
Tier I (leverage) capital:                                
Capital level   $
558,756
      
9.00
 %   $
539,228
      
9.00
 %
Requirement to be well capitalized    
310,554
      
5.00
      
299,654
      
5.00
  
Excess    
248,202
      
4.00
      
239,574
      
4.00
  
                                 
Common Equity Tier I risk-based capital:                                
Capital level   $
524,830
      
11.43
 %   $
506,432
      
11.79
 %
Requirement to be well capitalized    
298,350
      
6.50
      
279,121
      
6.50
  
Excess    
226,480
      
4.93
      
227,311
      
5.29
  
                                 
Tier 1 risk-based capital:                                
Capital level   $
558,756
      
12.17
 %   $
539,228
      
12.56
 %
Requirement to be well capitalized    
367,199
      
8.00
      
343,534
      
8.00
  
Excess    
191,557
      
4.17
      
195,694
      
4.56
  
                                 
Total risk-based capital:                                
Capital level   $
655,913
      
14.29
 %   $
636,457
      
14.82
 %
Requirement to be well capitalized    
458,999
      
10.00
      
429,417
      
10.00
  
Excess    
196,914
      
4.29
      
207,040
      
4.82