Note 8 - Geographic Information (Tables)

6 Months Ended

Jun. 30, 2014

Risks and Uncertainties [Abstract]

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2014		2013		2014		2013
Revenues:
United States	$	89,538	$	86,791	$	180,660	$	171,030
United Kingdom		19,744		17,689		35,986		32,773
Not connected to a country		93,062		96,381		194,638		200,537
Other		6,919		6,792		14,715		15,327
Total	$	209,263	$	207,653	$	425,999	$	419,667

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

	June 30,		December 31,
	2014		2013
Property and Equipment, net:
United States	$	90,885	$	90,709
United Kingdom		6,369		6,189
Not connected to a country		2,302		2,431
Other		14,558		15,395
Total	$	114,114	$	114,724