Note 7 - Loans - Components of Loans in Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Commercial Portfolio Segment [Member]
Loans	$ 2,248,996	$ 2,316,863
Less: Allowance for loan losses	(53,699)	(56,199)
Residential Portfolio Segment [Member]
Loans	2,329,402	1,932,355
Commercial Real Estate Portfolio Segment [Member]
Loans	5,743,991	5,301,218
Less: Allowance for loan losses	(44,933)	(49,440)
Real Estate Construction Portfolio Segment [Member]
Loans	515,236	441,543
Less: Allowance for loan losses	(9,245)	(22,170)
Equity Lines Portfolio Segment [Member]
Loans	170,022	168,980
Consumer Portfolio Segment [Member]
Loans	2,810	2,493
Less: Allowance for loan losses	(8)	(9)
Loans	11,010,457	10,163,452
Less: Allowance for loan losses	(117,942)	(138,963)
Unamortized deferred loan fees, net	(5,519)	(8,262)
Total loans, net	10,886,996	10,016,227
Loans held for sale	$ 4,750	$ 6,676

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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Amount, after allowance for bad debt, of loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans held for sale. Excludes loans and leases covered under loss sharing agreements.

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