Income Taxes (Significant Components of Deferred Tax Assets and Liabilities) (Details) - USD ($)	Jun. 30, 2022	Sep. 30, 2021
Components Of Deferred Tax Assets And Liabilities [Line Items]
Federal net operating loss carryforwards	$ 14,771,226	$ 8,209,224
State net operating loss carryforwards	2,163,558	1,646,827
Foreign net operating loss carryforwards - U.K.	15,861,787	15,875,889
Foreign capital allowance - U.K.	117,709	117,709
U.S. research and development tax credit carryforwards	6,921,789	2,761,415
Share-based compensation	3,502,093	2,071,838
Interest expense	2,124,706	1,368,042
Change in fair value of derivative liabilities	1,151,454	1,025,425
Gross deferred tax assets	47,070,004	33,463,604
Valuation allowance for deferred tax assets	(33,217,550)	(19,580,011)
Net deferred tax assets	13,852,454	13,883,593
Deferred tax liabilities:
In-process research and development	(882,427)	(882,427)
Covenant not-to-compete	(21,549)	(33,671)
Net deferred tax liabilities	(910,347)	(922,469)
Net deferred tax asset	12,942,107	12,961,124
U.K. [Member]
Components Of Deferred Tax Assets And Liabilities [Line Items]
Other, net	83,344	83,344
Malaysia [Member]
Components Of Deferred Tax Assets And Liabilities [Line Items]
Other, net	95,736	100,654
United States [Member]
Components Of Deferred Tax Assets And Liabilities [Line Items]
Other, net	276,602	203,237
Deferred tax liabilities:
Other, net	$ (6,371)	$ (6,371)