14. SEGMENT REPORTING - Segment Information (Details)	3 Months Ended
	Dec. 31, 2021 USD ($) Segment	Dec. 31, 2020 USD ($)	Sep. 30, 2021 USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Segments | Segment	2
Revenues	$ 41,241,969	$ 2,257,570
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	14,189,257	(7,167,530)
Net loss	14,485,755	(7,167,530)
Assets	418,144,771		$ 317,473,121
Energy [Member]
Segment Reporting Information [Line Items]
Revenues	3,970,210	1,213,870
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	986,240	(173,184)
Assets	22,733,365		17,507,314
Property Plant and Equipment	135,936	18,109
Intangibles	0	0
Capitalized Software	0	0
Long Lived Tangible Assets	135,936	18,109
Digital Currency Mining [Member]
Segment Reporting Information [Line Items]
Revenues	36,974,578	733,410
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	31,332,990	560,209
Assets	349,331,100		270,995,942
Property Plant and Equipment	67,018,388	6,570,869
Intangibles	0	7,457,970
Capitalized Software	0	0
Long Lived Tangible Assets	67,018,388	14,028,839
Total [Member]
Segment Reporting Information [Line Items]
Revenues	40,944,788	1,947,280
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	32,319,230	733,393
Assets	418,144,771		317,473,117
Other Revenue And Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	297,181	310,290
Consolidated Revenues [Member]
Segment Reporting Information [Line Items]
Revenues	41,241,969	2,257,570
Corporate Items And Eliminations [Member]
Segment Reporting Information [Line Items]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(17,833,475)	(7,900,923)
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Property Plant and Equipment	0	972
Intangibles	0	0
Capitalized Software	0	0
Long Lived Tangible Assets	0	$ 972
Other and Corporate Assets [Member]
Segment Reporting Information [Line Items]
Assets	$ 46,080,306		$ 28,969,865