Quarterly report pursuant to Section 13 or 15(d)

Revenue Disaggregation (Details - Geographic regions)

v3.22.2.2
Revenue Disaggregation (Details - Geographic regions) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Disaggregation of Revenue [Line Items]        
Revenues $ 3,331 $ 3,744 $ 7,314 $ 7,428
Product [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 3,331 3,744 7,314 7,428
Product [Member] | Revenue, Segment Benchmark [Member] | UNITED STATES        
Disaggregation of Revenue [Line Items]        
Revenues 973 1,347 1,842 2,939
Product [Member] | Revenue, Segment Benchmark [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 1,170 919 2,012 1,688
Product [Member] | Revenue, Segment Benchmark [Member] | Asia [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 330 437 1,155 638
Product [Member] | Revenue, Segment Benchmark [Member] | Latin America [Member]        
Disaggregation of Revenue [Line Items]        
Revenues 394 518 1,444 1,083
Product [Member] | Revenue, Segment Benchmark [Member] | Rest Of The World [Member]        
Disaggregation of Revenue [Line Items]        
Revenues $ 464 $ 523 $ 861 $ 1,080