Note 11 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	At December 31,
	2012		2011
	(In thousands)
Deferred tax asset
Allowance for credit losses	$	13,700	$	14,683
State franchise taxes		4,162		4,584
Deferred compensation		8,278		8,083
Real estate owned		2,211		1,177
Purchased assets and assumed liabilities		4,732		—
Post-retirement benefits		1,210		1,236
Employee benefit accruals		5,648		5,462
VISA Class B shares		1,479		866
Limited partnership investments		1,037		993
Impaired capital assets		20,819		21,058
Capital loss carryforward		47		548
Premises and equipment		444		242
Other		64		33
Subtotal deferred tax asset		63,831		58,965
Valuation allowance		—		—
Total deferred tax asset		63,831		58,965
Deferred tax liability
Net deferred loan fees		429		500
Intangible assets		9,219		11,296
Securities available for sale		10,741		8,404
Leases		752		934
Purchased assets and assumed liabilities		—		90
Other		241		126
Total deferred tax liability		21,382		21,350
Net deferred tax asset	$	42,449	$	37,615

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	For the Years Ended December 31,
	2012			2011			2010
	(In thousands)
Current income tax expense:
Federal	$	22,368		$	18,393		$	34,531
State		11,456			13,322			13,075
Total current		33,824			31,715			47,606
Deferred income tax (benefit) expense:
Federal		(7,280	)		1,839			(10,155	)
State		(1,114	)		(626	)		(606	)
Total deferred		(8,394	)		1,213			(10,761	)
Provision for income taxes	$	25,430		$	32,928		$	36,845

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	For the Years Ended December 31,
	2012			2011			2010
	(In thousands)
Federal income taxes due at statutory rate	$	37,295		$	42,285		$	45,998
Reductions in income taxes resulting from:
Interest on state and municipal securities and loans not taxable for federal income tax purposes		(12,494	)		(12,423	)		(11,875	)
State franchise taxes, net of federal income tax benefit		6,722			8,252			8,104
Tax credits		(3,684	)		(3,560	)		(3,521	)
Dividend received deduction		(28	)		(25	)		(21	)
Cash value life insurance		(953	)		(728	)		(953	)
Other		(1,428	)		(873	)		(887	)
Provision for income taxes	$	25,430		$	32,928		$	36,845

Summary of Income Tax Contingencies [Table Text Block]

	2012		2011
	(In thousands)
Balance at January 1,	$	496	$	259
Additions for tax positions taken in the current period		238		131
Reductions for tax positions taken in the current period		—		—
Additions for tax positions taken in prior years		13		232
Reductions for tax positions taken in prior years		—		—
Decreases related to settlements with taxing authorities		—		—
Decreases as a result of a lapse in statute of limitations		—		(126	)
Balance at December 31,	$	747	$	496