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Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ / shares in Thousands
3 Months Ended 9 Months Ended 64 Months Ended
Oct. 07, 2021
Jul. 09, 2021
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Jul. 08, 2021
Apr. 20, 2021
Dec. 31, 2020
Revenue from Contract with Customer, Excluding Assessed Tax, Total     $ 272,166 $ 0 $ 272,166 $ 0 $ 0    
Common Stock, No Par Value (in dollars per share)     $ 0   $ 0       $ 0
Tesla Digital Transaction [Member] | Subsequent Event [Member]                  
Stock Issued During Period, Shares, Purchase of Assets (in shares) 5,000,000                
Common Stock, No Par Value (in dollars per share) $ 0                
Chief Technology Officer [Member]                  
Annual Salary   $ 31,200              
Clear Com Media, Inc [Member]                  
Share Exchange Agreement, Shares to Acquire (in shares)               10,000  
Share Exchange Agreement, Shares to Issue (in shares)               4,000,000  
Minimum [Member]                  
Property, Plant and Equipment, Useful Life (Year)         2 years        
Finite-Lived Intangible Asset, Useful Life (Year)         3 years        
Maximum [Member]                  
Property, Plant and Equipment, Useful Life (Year)         7 years        
Finite-Lived Intangible Asset, Useful Life (Year)         7 years        
Customer Concentration Risk [Member] | Revenue Benchmark [Member]                  
Number of Major Customers     1   1        
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | One Customer [Member]                  
Concentration Risk, Percentage     99.00%   99.00%