v3.26.1
SEGMENT AND GEOGRAPHIC AREA INFORMATION - Net revenues by geographic location of customers (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Sep. 30, 2025
Sep. 30, 2024
Net revenues by geographic location of customers            
Total $ 1,024,111 $ 762,822 $ 1,589,505 $ 1,633,113 $ 2,136,935 $ 2,113,490
Americas            
Net revenues by geographic location of customers            
Total         1,010,795 951,896
Europe            
Net revenues by geographic location of customers            
Total         105,584 172,369
Asia and other            
Net revenues by geographic location of customers            
Total         $ 1,020,556 $ 989,225