XML 36 R21.htm IDEA: XBRL DOCUMENT
v3.20.1

3. PATENTS (Tables) | 12 Months Ended
--- | ---
Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of patents | Patents, net consist of the following:
|  | March 31, 2020 |  |  | March 31, 2019 |
Patents |  | $ | 211,645 |  |  | $ | 211,645 |
Accumulated amortization |  |  | (154,141 | ) |  |  | (144,977 | )
|  | $ | 57,504 |  |  | $ | 66,668 |

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 Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration