Income Taxes (Schedule Of Deferred Tax Amounts Classified In Balance Sheets) (Details) - USD ($)	Mar. 31, 2019	Sep. 30, 2018
Components Of Deferred Tax Assets And Liabilities [Line Items]
Long-term deferred tax asset	$ 8,570,150	$ 8,543,758
Long-term deferred tax liability	(895,860)	(844,758)
U.K. [Member]
Components Of Deferred Tax Assets And Liabilities [Line Items]
Long-term deferred tax asset	8,535,836	8,509,915
Malaysia [Member]
Components Of Deferred Tax Assets And Liabilities [Line Items]
Long-term deferred tax asset	34,314	33,843
U.S. [Member]
Components Of Deferred Tax Assets And Liabilities [Line Items]
Long-term deferred tax liability	$ (895,860)	$ (844,758)