Annual report pursuant to Section 13 and 15(d)

18. Geographic Information (Details - Geographic regions)

v3.21.2
18. Geographic Information (Details - Geographic regions) - USD ($)
12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Revenues $ 18,629,000 $ 17,928,000
Product [Member]    
Revenues 18,517,000 17,777,000
Product [Member] | Sales Revenue, Segment [Member] | United States [Member]    
Revenues 5,419,000 7,991,000
Product [Member] | Sales Revenue, Segment [Member] | Latin America [Member]    
Revenues 5,864,000 3,622,000
Product [Member] | Sales Revenue, Segment [Member] | Europe and Other [Member]    
Revenues $ 7,234,000 $ 6,164,000