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Note 4 - Property and Equipment, Net (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

September 30,

   

December 31,

 
   

2022

   

2021

 

Furniture and fixtures

  $ 60,082     $ 41,799  

Leasehold improvements

    40,112       28,112  

Machinery & equipment

    144,406       86,266  

Vehicles

    252,725       252,724  

Test/Demo vehicles

    15,784       15,784  

Total property and equipment

    513,108       424,685  

Less accumulated depreciation

    (207,491 )     (152,572 )

Net property and equipment

  $ 305,617     $ 272,113