XML 19 R9.htm IDEA: XBRL DOCUMENT
v3.10.0.1

3. PATENTS | 12 Months Ended
--- | ---
Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
PATENTS | 3. PATENTS Patents consist of the following:
|  | March 31, 2018 |  |  | March 31, 2017 |
Patents |  | $ | 211,645 |  |  | $ | 211,645 |
Accumulated amortization |  |  | (135,813 | ) |  |  | (126,649 | )
|  | $ | 75,832 |  |  | $ | 84,996 |
Amortization expense for patents for the years ended March 31, 2018 and 2017 was $9,164 and $9,165, respectively. Future amortization expense on patents is estimated to be approximately $9,000 per year based on the estimated life of the patents. The weighted average remaining life of our patents is approximately 3.2 years.

X
- References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
Name: | us-gaap_IntangibleAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration