Note 4 - Income Taxes (Tables)

3 Months Ended

Mar. 31, 2015

Income Tax Disclosure [Abstract]

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

	Three months ended March 31,
	2015		2014
Provision for income taxes	$	(86)	$	(180)
Effective tax rate		17.4%		37.4%