Annual report pursuant to Section 13 and 15(d)

Note 3 - Loans - Loans Categorized by Past Due Status (Details)

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Note 3 - Loans - Loans Categorized by Past Due Status (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Accrual loans, past due $ 11,002 $ 18,439
Non-accrual 21,926 10,765
Current 6,500,571 5,822,057
Loans 6,533,499 5,851,261
Financing Receivables, 30 to 59 Days Past Due [Member]    
Accrual loans, past due 3,400 7,143
Financing Receivables, 60 to 89 Days Past Due [Member]    
Accrual loans, past due 1,758 11,236
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]    
Accrual loans, past due 5,844 60
Commercial Real Estate Portfolio Segment [Member]    
Accrual loans, past due 1,875 7,124
Non-accrual 10,503 9,712
Current 2,500,847 2,262,530
Loans 2,513,225 2,279,366
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]    
Accrual loans, past due 1,222 1,410
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]    
Accrual loans, past due 48 5,702
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]    
Accrual loans, past due 605 12
Real Estate Portfolio Segment[Member]    
Accrual loans, past due 7,486 10,060
Non-accrual 10,426 1,015
Current 3,404,677 2,917,733
Loans 3,422,589 2,928,808
Real Estate Portfolio Segment[Member] | Construction Loans [Member]    
Accrual loans, past due 1,352 1,053
Non-accrual 997
Current 530,843 579,821
Loans 533,192 580,874
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]    
Accrual loans, past due 412 3,664
Non-accrual 3,358 556
Current 1,460,117 1,324,446
Loans 1,463,887 1,328,666
Real Estate Portfolio Segment[Member] | One to Four Family [Member]    
Accrual loans, past due 892 1,280
Non-accrual 2,046 459
Current 618,696 601,324
Loans 621,634 603,063
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]    
Accrual loans, past due 6,182 5,116
Non-accrual 5,022
Current 1,325,864 991,963
Loans 1,337,068 997,079
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member]    
Accrual loans, past due 2,120 5,546
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Construction Loans [Member]    
Accrual loans, past due 56
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Owner Occupied Commercial [Member]    
Accrual loans, past due 412
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | One to Four Family [Member]    
Accrual loans, past due 534 430
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Other Mortgages [Member]    
Accrual loans, past due 1,174 5,116
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member]    
Accrual loans, past due 235 4,514
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Construction Loans [Member]    
Accrual loans, past due 1,352 997
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Owner Occupied Commercial [Member]    
Accrual loans, past due 3,664
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | One to Four Family [Member]    
Accrual loans, past due 235 850
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Other Mortgages [Member]    
Accrual loans, past due
Real Estate Portfolio Segment[Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]    
Accrual loans, past due 5,131
Real Estate Portfolio Segment[Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Construction Loans [Member]    
Accrual loans, past due
Real Estate Portfolio Segment[Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Owner Occupied Commercial [Member]    
Accrual loans, past due
Real Estate Portfolio Segment[Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | One to Four Family [Member]    
Accrual loans, past due 123
Real Estate Portfolio Segment[Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Other Mortgages [Member]    
Accrual loans, past due 5,008
Consumer Portfolio Segment [Member]    
Accrual loans, past due 289 202
Non-accrual 38
Current 64,204 61,973
Loans 64,493 62,213
Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]    
Accrual loans, past due 58 131
Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]    
Accrual loans, past due 123 23
Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]    
Accrual loans, past due $ 108 $ 48