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Note 10 - Revenue 1 (Details Textual)
6 Months Ended
Jun. 30, 2021
Customer Concentration Risk [Member] | Accounts Receivable [Member] | One Customer [Member]  
Number of Customers 1
Concentration Risk, Percentage 45.00%
Minimum [Member]  
Domain Services, Purchased Term (Year) 1 year
Finite-Lived Intangible Asset, Useful Life (Year) 2 years
Minimum [Member] | Active Domain Name Contracts [Member]  
Finite-Lived Intangible Asset, Useful Life (Year) 1 year
Maximum [Member]  
Domain Services, Purchased Term (Year) 10 years
Finite-Lived Intangible Asset, Useful Life (Year) 15 years
Maximum [Member] | Active Domain Name Contracts [Member]  
Finite-Lived Intangible Asset, Useful Life (Year) 10 years