Note 5 - Income Taxes (Tables)

3 Months Ended

Mar. 31, 2016

Income Tax Disclosure [Abstract]

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

	Three months ended March 31,
	2016		2015
Benefit (provision) for income taxes	$	304	$	(86)
Effective (benefit) tax rate		(45.2)%		17.4%