Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Loans - Loans Categorized by Past Due Status (Details)

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Note 5 - Loans - Loans Categorized by Past Due Status (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Accrual loans, past due $ 5,680 $ 8,336
Non-accrual 12,084 10,624
Current 5,134,220 4,892,810
Loans 5,151,984 4,911,770 [1]
Financing Receivables, 30 to 59 Days Past Due [Member]    
Accrual loans, past due 5,581 1,076
Financing Receivables, 60 to 89 Days Past Due [Member]    
Accrual loans, past due 83 997
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]    
Accrual loans, past due 16 6,263
Commercial Real Estate Portfolio Segment [Member]    
Accrual loans, past due 1,031 760
Non-accrual 6,979 7,282
Current 2,053,493 1,974,225
Loans 2,061,503 1,982,267
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]    
Accrual loans, past due 1,023 710
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]    
Accrual loans, past due 8 40
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]    
Accrual loans, past due 10
Real Estate Portfolio Segment[Member]    
Accrual loans, past due 4,211 7,403
Non-accrual 2,444 74
Current 2,683,139 2,531,730
Loans 2,689,794 2,539,207
Real Estate Portfolio Segment[Member] | Construction Loans [Member]    
Accrual loans, past due 363 59
Non-accrual 2,661 3,268
Current 342,753 331,758
Loans 345,777 335,085
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]    
Accrual loans, past due 1,001 6,208
Non-accrual 1,373
Current 1,260,204 1,165,511
Loans 1,262,578 1,171,719
Real Estate Portfolio Segment[Member] | One to Four Family [Member]    
Accrual loans, past due 260 289
Non-accrual 1,071 74
Current 552,930 536,442
Loans 554,261 536,805
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]    
Accrual loans, past due 2,950 906
Non-accrual
Current 870,005 829,777
Loans 872,955 830,683
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member]    
Accrual loans, past due 4,166 255
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Construction Loans [Member]    
Accrual loans, past due 363 59
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Owner Occupied Commercial [Member]    
Accrual loans, past due 1,001
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | One to Four Family [Member]    
Accrual loans, past due 215 160
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Other Mortgages [Member]    
Accrual loans, past due 2,950 95
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member]    
Accrual loans, past due 45 940
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Construction Loans [Member]    
Accrual loans, past due
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Owner Occupied Commercial [Member]    
Accrual loans, past due
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | One to Four Family [Member]    
Accrual loans, past due 45 129
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Other Mortgages [Member]    
Accrual loans, past due 811
Real Estate Portfolio Segment[Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]    
Accrual loans, past due 6,208
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 6,208
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
Real Estate Portfolio Segment[Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Other Mortgages [Member]    
Accrual loans, past due
Consumer Portfolio Segment [Member]    
Accrual loans, past due 75 114
Non-accrual
Current 54,835 55,097
Loans 54,910 55,211
Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]    
Accrual loans, past due 29 52
Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]    
Accrual loans, past due 30 17
Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]    
Accrual loans, past due $ 16 $ 45
[1] Derived from audited financial statements