Annual report pursuant to Section 13 and 15(d)

17. Geographic Information (Details - Geographic regions)

v3.19.2
17. Geographic Information (Details - Geographic regions) - USD ($)
12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Revenues $ 18,970,000 $ 16,658,000
Product [Member]    
Revenues 17,881,000 15,663,000
Product [Member] | Sales Revenue, Segment [Member] | United States [Member]    
Revenues 9,040,000 8,372,000
Product [Member] | Sales Revenue, Segment [Member] | Latin America [Member]    
Revenues 3,962,000 3,007,000
Product [Member] | Sales Revenue, Segment [Member] | Europe and Other [Member]    
Revenues $ 4,879,000 $ 4,284,000