Quarterly report pursuant to Section 13 or 15(d)

INTANGIBLE ASSETS (Details Narrative)

v3.21.1
INTANGIBLE ASSETS (Details Narrative) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2013
Notes to Financial Statements      
Expected useful life, patent     15 years
Amortization of intangible assets $ 89,000 $ 61,000