Note 4 - Income Taxes (Tables)

6 Months Ended

Jun. 30, 2015

Income Tax Disclosure [Abstract]

Schedule of Income Tax Provisions and Rates [Table Text Block]

	Three months ended June 30,				Six months ended June 30,
	2015		2014		2015		2014
Provision for income taxes	$	(110)	$	(172)	$	(196)	$	(352)
Effective tax rate		18.2%		50.4%		17.8%		42.8%