Note 5 - Intangible Assets

12 Months Ended

Mar. 31, 2019

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 

3

-

15

 years with a weighted average remaining life of approximately 

6

 years.

	March 31, 2019									March 31, 2018
	Cost		Weighted Average Amortization Period (Years)		Accumulated Amortization			Net Carrying Amount		Cost		Weighted Average Amortization Period (Years)		Accumulated Amortization			Net Carrying Amount
Patents & Trademarks	$	20,934		15		(12,035	)	$	8,899	$	20,934		15		(10,639	)	$	10,295

Amortization expense was 

$1,396

 for each of the years ended 

March 31, 2019 

and 

2018.

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

For the fiscal years ended March 31,
2020	$	1,396
2021		1,396
2022		1,396
2023		1,396
2024		1,396
Thereafter		1,919
	$	8,899