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Note 6 - Intangible Assets (Details Textual) - USD ($)
7 Months Ended 9 Months Ended 12 Months Ended
Oct. 07, 2021
Jul. 09, 2021
Sep. 12, 2016
Sep. 30, 2018
Sep. 30, 2021
Dec. 31, 2020
Development of Acquired Technology, Annual Compensation for Specialist     $ 200,000      
Contingent Consideration Classified as Equity, Fair Value Disclosure         $ 354,900 $ 1,380,000
Impairment of Real Estate         $ 0 $ 0
Minimum [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)         3 years  
Minimum [Member] | Clear Com Media, Inc [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)   3 years        
Maximum [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)         7 years  
Maximum [Member] | Clear Com Media, Inc [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)   7 years        
Lighting Patent [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)         16 years  
Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year         $ 424,812  
Finite-Lived Intangible Asset, Expected Amortization, Year Eleven         283,215  
Finite-Lived Intangible Asset, Expected Amortization, Year Two         424,812  
Finite-Lived Intangible Asset, Expected Amortization, Year Three         424,812  
Finite-Lived Intangible Asset, Expected Amortization, Year Four         424,812  
Finite-Lived Intangible Asset, Expected Amortization, Year Ten         424,812  
Finite-Lived Intangible Asset, Expected Amortization, Year Nine         424,812  
Finite-Lived Intangible Asset, Expected Amortization, Year Eight         424,812  
Finite-Lived Intangible Asset, Expected Amortization, Year Seven         424,812  
Finite-Lived Intangible Asset, Expected Amortization, Year Six         424,812  
Finite-Lived Intangible Asset, Expected Amortization, Year Five         424,812  
Finite-Lived Intangible Asset, Expected Amortization, Year One         $ 424,812  
Intangibles, Excluding Lighting Patent [Member] | Clear Com Media, Inc [Member]            
Finite-Lived Intangible Asset, Expected Amortization, Year Two   $ 96,400        
Finite-Lived Intangible Asset, Expected Amortization, Year Three   88,600        
Finite-Lived Intangible Asset, Expected Amortization, Year Four   80,700        
Finite-Lived Intangible Asset, Expected Amortization, after Year Five   121,100        
Finite-Lived Intangible Asset, Expected Amortization, Year Five   $ 80,700        
Intangibles, Excluding Lighting Patent [Member] | Minimum [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)         3 years  
Intangibles, Excluding Lighting Patent [Member] | Maximum [Member]            
Finite-Lived Intangible Asset, Useful Life (Year)         15 years  
Subsequent Event [Member] | Tesla Digital Transaction [Member]            
Stock Issued During Period, Shares, Purchase of Assets (in shares) 5,000,000          
Tesla Digital [Member]            
Stock Issued During Period, Shares, Purchase of Assets (in shares)       1,000,000