Quarterly report pursuant to Section 13 or 15(d)

11. Segment and Geographic Information (Details)

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11. Segment and Geographic Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Revenues $ 5,769 $ 4,727 $ 11,536 $ 9,221
Product [Member] | UNITED STATES        
Revenues 1,984 2,209 3,605 4,696
Product [Member] | Latin America [Member]        
Revenues 2,024 948 4,350 1,712
Product [Member] | Europe and Rest of the World [Member]        
Revenues $ 1,761 $ 1,570 $ 3,581 $ 2,813