Note 10 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net Revenues	$ 75,893	$ 74,311	$ 221,861	$ 240,418
Fiber Internet Services [Member]
Net Revenues	6,672	4,657	17,868	13,379
Mobile Services [Member]
Net Revenues	8,492	8,852	19,778	46,567
Mobile Services [Member] | Retail Mobile Services [Member]
Net Revenues	2,309	7,019	6,872	44,734
Mobile Services [Member] | Mobile Platform Services [Member]
Net Revenues	3,564	376	6,370	376
Mobile Services [Member] | Other Services [Member]
Net Revenues	2,619	1,457	6,536	1,457
Domain Name Services [Member]
Net Revenues	60,729	60,802	184,215	180,472
Domain Name Services [Member] | Wholesale [Member]
Net Revenues	51,943	51,641	157,378	152,859
Domain Name Services [Member] | Retail Services [Member]
Net Revenues	8,786	9,161	26,837	27,613
Domain Name Services [Member] | Domain Services [Member] | Wholesale [Member]
Net Revenues	47,081	47,261	141,954	139,430
Domain Name Services [Member] | Value Added Services [Member] | Wholesale [Member]
Net Revenues	$ 4,862	$ 4,380	$ 15,424	$ 13,429