Annual report pursuant to Section 13 and 15(d)

Note 3 - Loans - Summary of Loans (Details)

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Note 3 - Loans - Summary of Loans (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Financing receivable, gross $ 7,261,451 $ 6,533,499    
Less: Allowance for loan losses (76,584) (68,600) $ (59,406) $ (51,893)
Loans and Leases Receivable, Net Amount, Total 7,184,867 6,464,899    
Commercial Real Estate Portfolio Segment [Member]        
Financing receivable, gross 2,696,210 2,513,225    
Less: Allowance for loan losses (43,666) (39,016) (32,880)  
Real Estate Portfolio Segment[Member]        
Financing receivable, gross 3,979,060 3,422,589    
Real Estate Portfolio Segment[Member] | Construction Loans [Member]        
Financing receivable, gross 521,392 533,192    
Less: Allowance for loan losses (2,768) (3,522) (4,989)  
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]        
Financing receivable, gross 1,587,478 1,463,887    
Real Estate Portfolio Segment[Member] | One to Four Family [Member]        
Financing receivable, gross 644,188 621,634    
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]        
Financing receivable, gross 1,747,394 1,337,068    
Consumer Portfolio Segment [Member]        
Financing receivable, gross 64,789 64,493    
Less: Allowance for loan losses $ (497) $ (554) $ (515)