Quarterly report pursuant to Section 13 or 15(d)

Geographic Information (Details - Geographic regions)

v3.22.0.1
Geographic Information (Details - Geographic regions) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Revenue from External Customer [Line Items]        
Revenues $ 2,902 $ 4,936 $ 10,330 $ 16,472
Product [Member] | UNITED STATES | Revenue, Segment Benchmark [Member]        
Revenue from External Customer [Line Items]        
Revenues 933 1,978 3,872 5,582
Product [Member] | Latin America [Member] | Revenue, Segment Benchmark [Member]        
Revenue from External Customer [Line Items]        
Revenues 273 1,307 1,356 5,659
Product [Member] | Europe [Member] | Revenue, Segment Benchmark [Member]        
Revenue from External Customer [Line Items]        
Revenues $ 1,696 $ 1,651 $ 5,102 $ 5,231