Major Customers and Foreign Sales (Tables)

3 Months Ended

Dec. 31, 2020

Geographic Areas Revenues From External Customers [Abstract]

Schedule of Revenues by Geographic Region

Our net revenues were from customers in the following geographic regions:

	Three Months Ended December 31,
	2020			2019
United States		19	%		33	%
Other		1	%		9	%
Total North America		20	%		42	%
China		24	%		23	%
Malaysia		3	%		2	%
Taiwan		32	%		13	%
Other		9	%		6	%
Total Asia		68	%		44	%
Germany		2	%		3	%
Other		10	%		11	%
Total Europe		12	%		14	%
		100	%		100	%