Note 5 - Intangible Assets
12 Months Ended
Mar. 31, 2022
Notes to Financial Statements  
Intangible Assets Disclosure [Text Block]

NOTE 5 - INTANGIBLE ASSETS

 

Intangible assets are being amortized using the straight-line method over periods ranging from 10-15 years with a weighted average remaining life of approximately 6 years.

 

   

March 31, 2022

   

March 31, 2021

 
   

Cost

   

Weighted

Average

Amortization

Period

(Years)

   

Accumulated Amortization

   

Net

Carrying

Amount

   

Cost

   

Weighted

Average Amortization Period

(Years)

   

Accumulated Amortization

   

Net

Carrying

Amount

 

Patents & Trademarks

  $ 35,794       10 - 15     $ (19,751 )   $ 16,043     $ 35,794       10 - 15     $ (16,871 )   $ 18,923  

 

Amortization expense was $2,880 and $2,882 for the years ended March 31, 2022 and 2021, respectively.

 

Estimated aggregate future amortization expense related to intangible assets is as follows:

 

For the fiscal years ended March 31,

       

2023

  $ 2,882  

2024

    2,882  

2025

    2,465  

2026

    2,529  

2027

    1,486  

Thereafter

    3,799  
    $ 16,043