Note 11 - Fair Value Measurements (Details) - Financial Asset and Liabilities Measured on a Non-Recurring Basis - Prior Year (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended				12 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013		Dec. 31, 2013		Dec. 31, 2012
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	$ 92,326				$ 92,326				$ 116,001
Total Losses / (Gains)	316		(1,097)		610		(330)		3,344		12,666
Commercial Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	4,983				4,983				7,584
Commercial Loans [Member] | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	4,983				4,983				7,584
Total Losses / (Gains)	17				17		463		5,731
Commercial Mortgage Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	26,889				26,889				29,001
Commercial Mortgage Loans [Member] | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	26,889				26,889				29,001
Total Losses / (Gains)			65				106		125		440
Construction Residential [Member] | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis									500
Construction Residential [Member] | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis									500
Construction - Other Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis									15,363
Construction - Other Loans [Member] | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis									15,363
Total Losses / (Gains)											65
Residential Mortgage And Equity Lines Member | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	13,156				13,156				14,236
Residential Mortgage And Equity Lines Member | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	13,156				13,156				14,236
Total Losses / (Gains)			31				220		213		605
Land Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	31				31				29
Land Loans [Member] | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	31				31				29
Total Losses / (Gains)							48				162
Fair Value, Inputs, Level 1 [Member] | Other Real Estate Owned [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis		[1]				[1]				[2]
Fair Value, Inputs, Level 1 [Member] | Equity Investments [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis									642
Fair Value, Inputs, Level 1 [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis									642
Fair Value, Inputs, Level 2 [Member] | Other Real Estate Owned [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	15,483	[1]			15,483	[1]			13,248	[2]
Fair Value, Inputs, Level 2 [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	15,483				15,483				13,248
Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	60,419				60,419				66,713
Fair Value, Inputs, Level 3 [Member] | Other Real Estate Owned [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	10,637	[1]			10,637	[1]			26,498	[2]
Fair Value, Inputs, Level 3 [Member] | Investments in Venture Capital [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis									8,900
Fair Value, Inputs, Level 3 [Member] | Equity Investments [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	5,787				5,787
Fair Value, Inputs, Level 3 [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	76,843				76,843				102,111
Impaired Loans [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	60,419				60,419				66,713
Total Losses / (Gains)	17		96		17		837		6,069		1,272
Other Real Estate Owned [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	26,120	[1]			26,120	[1]			39,746	[2]
Total Losses / (Gains)	142	[1]	(1,312)	[1]	325	[1]	(1,378)	[1]	(3,134)	[2]	10,904	[2]
Investments in Venture Capital [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis									8,900
Total Losses / (Gains)									409		309
Equity Investments [Member]
Assets
Fair Value of Assets Measured at Fair Value on a Non-Recurring Basis	5,787				5,787				642
Total Losses / (Gains)	$ 157		$ 119		$ 268		$ 211				$ 181

[1] Other real estate owned balance of $34.8 million in the condensed consolidated balance sheet is net of estimated disposal costs.

[2] Other real estate owned balance of $53.0 million in the consolidated balance sheet is net of estimated disposal costs.