Note 11 - Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2013

Note 11 - Fair Value Measurements (Tables) [Line Items]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

June 30, 2013	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	410,035	$	-	$	-	$	410,035
Mortgage-backed securities		-		1,405,348		-		1,405,348
Collateralized mortgage obligations		-		7,668		-		7,668
Asset-backed securities		-		133		-		133
Corporate debt securities		-		182,826		-		182,826
Mutual funds		5,839		-		-		5,839
Preferred stock of government sponsored entities		-		6,456		-		6,456
Total securities available-for-sale		415,874		1,602,431		-		2,018,305
Trading securities		-		4,816		-		4,816
Warrants		-		-		72		72
Option contracts		-		55		-		55
Foreign exchange contracts		-		3,177		-		3,177
Total assets	$	415,874	$	1,610,479	$	72	$	2,026,425
Liabilities
Foreign exchange contracts	$	-	$	6,233	$	-	$	6,233
Total liabilities	$	-	$	6,233	$	-	$	6,233

December 31, 2012	Fair Value Measurements Using						Total at
	Level 1		Level 2		Level 3		Fair Value
	(In thousands)
Assets
Securities available-for-sale
U.S. Treasury securities	$	509,971	$	-	$	-	$	509,971
Mortgage-backed securities		-		416,694		-		416,694
Collateralized mortgage obligations		-		10,168		-		10,168
Asset-backed securities		-		141		-		141
Corporate debt securities		-		335,977		-		335,977
Mutual funds		6,079		-		-		6,079
Preferred stock of government sponsored entities		-		2,335		-		2,335
Trust preferred securities		10,115		-		-		10,115
Total securities available-for-sale		526,165		765,315		-		1,291,480
Trading securities		-		4,703		-		4,703
Warrants		-		-		104		104
Foreign exchange contracts		-		2,924		-		2,924
Total assets	$	526,165	$	772,942	$	104	$	1,299,211
Liabilities
Option contracts	$	-	$	2	$	-	$	2
Foreign exchange contracts		-		1,586		-		1,586
Total liabilities	$	-	$	1,588	$	-	$	1,588

Fair Value Measurements, Nonrecurring [Table Text Block]

	June 30, 2013								Total Losses/(gains)
	Fair Value Measurements Using						Total at		Three Months ended					Six Months ended
	Level 1		Level 2		Level 3		Fair Value		June 30, 2013			June 30, 2012		June 30, 2013			June 30, 2012
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	5,360	$	5,360	$	-		$	6	$	463		$	865
Commercial mortgage loans		-		-		27,389		27,389		65			-		106			-
Construction- residential		-		-		500		500		-			-		-			-
Construction- other		-		-		13,141		13,141		-			-		-			-
Real estate loans		-		-		-		-		-			266		-			301
Residential mortgage and equity lines		-		-		13,067		13,067		31			148		220			551
Land loans		-		-		47		47		-			-		48			-
Total impaired loans		-		-		59,504		59,504		96			420		837			1,717
Other real estate owned (1)		-		38,843		421		39,264		(1,312	)		4,903		(1,378	)		7,727
Investments in venture capital		-		-		9,037		9,037		119			50		211			187
Equity investments		142		-		-		142		-			43		-			43
Total assets	$	142	$	38,843	$	68,962	$	107,947	$	(1,097	)	$	5,416	$	(330	)	$	9,674

12 Months Ended [Member]

Note 11 - Fair Value Measurements (Tables) [Line Items]

Fair Value Measurements, Nonrecurring [Table Text Block]

	December 31, 2012								Total Losses
	Fair Value Measurements Using						Total at		Twelve months ended
	Level 1		Level 2		Level 3		Fair Value		December 31, 2012		December 31, 2011
	(In thousands)
Assets
Impaired loans by type:
Commercial loans	$	-	$	-	$	3,492	$	3,492	$	-	$	877
Commercial mortgage loans		-		-		11,295		11,295		440		-
Construction- residential		-		-		500		500		-		-
Construction- other		-		-		46,153		46,153		65		-
Residential mortgage and equity lines		-		-		11,206		11,206		605		820
Land loans		-		-		297		297		162		46
Total impaired loans		-		-		72,943		72,943		1,272		1,743
Other real estate owned (1)		-		27,149		4,841		31,990		10,904		7,003
Investments in venture capital		-		-		9,001		9,001		309		379
Equity investments		142		-		-		142		181		200
Total assets	$	142	$	27,149	$	86,785	$	114,076	$	12,666	$	9,325