Note 14 - Regulatory Capital (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure Text Block [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]

	December 31, 2013					December 31, 2012
	Amount		Percent of Assets			Amount		Percent of Assets
	(Dollars in thousands)
Tier I (leverage) capital:
Capital level	$	447,305		9.48	%	$	425,149		9.62	%
Requirement to be well capitalized		235,992		5.00			220,980		5.00
Excess		211,313		4.48			204,169		4.62
Tier I risk-based capital:
Capital level	$	447,305		14.59	%	$	425,149		14.38	%
Requirement to be well capitalized		183,944		6.00			177,401		6.00
Excess		263,361		8.59			247,748		8.38
Total risk-based capital:
Capital level	$	479,081		15.63	%	$	456,252		15.43	%
Requirement to be well capitalized		306,573		10.00			295,668		10.00
Excess		172,508		5.63			160,584		5.43

	December 31, 2013
	Amount		Percent of Assets
	(Dollars in thousands)
Tier I (leverage) capital: (1)
Capital level	$	456,772		9.70	%
Requirement to be well capitalized		235,547		5.00
Excess		221,225		4.70
Tier I risk-based capital: (1)
Capital level	$	456,772		14.93	%
Requirement to be well capitalized		183,579		6.00
Excess		273,193		8.93
Total risk-based capital: (1)
Capital level	$	488,548		15.97	%
Requirement to be well capitalized		305,966		10.00
Excess		182,582		5.97