v3.25.1
Note 4 - Segment Information - Schedule of Segment Information (Details) - USD ($)
 3 Months Ended 6 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Sep. 30, 2024
Revenues $ 4,950,140 $ 33,335 $ 7,870,625 $ 33,335  
Segment's net loss before impairment and income taxes (41,873,862) (68,065,803) (160,671,107) (133,785,420)  
Segment's net loss before income taxes (53,880,314) (173,527,310) (172,677,559) (239,246,927)  
Total segment assets 150,089,500 214,119,749 150,089,500 214,119,749 $ 178,631,289
Bollinger Segment [Member]          
Revenues 996,389 0 3,778,309 0  
Segment's net loss before impairment and income taxes (11,852,385) (8,726,290) (24,889,966) (19,207,967)  
Segment's net loss before income taxes (11,852,385) (97,232,147) (36,896,418) (107,713,824)  
Total segment assets 50,178,424 60,455,912 50,178,424 60,455,912  
Mullen ELMS Segment [Member]          
Revenues 3,953,751 33,335 4,092,316 33,335  
Segment's net loss before impairment and income taxes (30,021,477) (59,339,513) (135,781,141) (114,577,453)  
Segment's net loss before income taxes (42,027,929) (76,295,163) (135,781,141) (131,533,103)  
Total segment assets $ 99,911,076 $ 153,663,837 $ 99,911,076 $ 153,663,837