v3.25.2
Note 4 - Segment Information - Schedule of Segment Information (Details) - USD ($)
 3 Months Ended 9 Months Ended
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Sep. 30, 2024
Revenues $ 473,686   $ 65,235 $ 8,344,311 $ 98,570  
Segment's net loss before impairment and income taxes (131,441,651)   (91,597,353) (292,112,758) (225,382,773)  
Segment's net loss before income taxes (131,767,824) $ (131,767,824) (91,627,413) (304,445,383) (330,874,340)  
Total segment assets 89,229,106   192,329,766 89,229,106 192,329,766 $ 178,631,289
Bollinger Motors Segment [Member]            
Revenues 266,281   0 4,044,590 0  
Segment's net loss before impairment and income taxes (11,796,499)   (10,669,490) (36,686,465) (29,877,457)  
Segment's net loss before income taxes   (23,802,951) (10,669,490) (49,019,090) (118,383,314)  
Total segment assets 41,755,371   51,366,330 41,755,371 51,366,330  
Bollinger Commercial Segment [Member]            
Revenues 207,405   65,235 4,299,721 98,570  
Segment's net loss before impairment and income taxes (119,645,152)   (80,927,863) (255,426,293) (195,505,316)  
Segment's net loss before income taxes   $ (107,964,873) (80,957,923) (255,426,293) (212,491,026)  
Total segment assets $ 47,473,735   $ 140,963,436 $ 47,473,735 $ 140,963,436