Note 8 - Income Taxes (Tables)

6 Months Ended

Jun. 30, 2013

Income Tax Disclosure [Abstract]

Schedule Of Income Tax Expense Benefit And Effective Income Tax Rate [Table Text Block]

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2013			2012			2013			2012
Income tax expense	$	3,573		$	6,926		$	5,224		$	9,215
Effective income tax rate		41.0	%		38.6	%		46.5	%		39.1	%