Note 12 - Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

	Fiscal Quarter
	First		Second		Third		Fourth
	(In thousands, except for per share data)
Year Ended December 31, 2014:
Revenue (less agency commissions)	$	91,297	$	107,249	$	131,702	$	177,886
Operating income		17,410		23,186		41,156		72,021
Net income		1,277		1,591		13,940		31,253
Basic net income per share	$	0.02	$	0.03	$	0.24	$	0.54
Diluted net income per share	$	0.02	$	0.03	$	0.24	$	0.53

Year Ended December 31, 2013:
Revenue (less agency commissions)	$	78,169	$	84,285	$	88,288	$	95,556
Operating income		15,060		21,312		24,220		23,288
Net income		870		5,144		7,073		5,201
Basic net income per share	$	0.02	$	0.09	$	0.12	$	0.09
Diluted net income per share	$	0.02	$	0.09	$	0.12	$	0.09