Business Segment Information (Tables)

3 Months Ended

Dec. 31, 2020

Segment Reporting [Abstract]

Schedule of Business Segment Information

Information concerning our business segments is as follows, in thousands:

	Three Months Ended December 31,
	2020			2019
Net Revenues:
Semiconductor	$	15,575		$	17,232
SiC/LED		2,400			2,817
Non-segment related		—			643
	$	17,975		$	20,692
Operating income (loss):
Semiconductor	$	2,197		$	2,722
SiC/LED		(66	)		534
Non-segment related		(1,077	)		(1,619	)
	$	1,054		$	1,637

	December 31, 2020		September 30, 2020
Identifiable Assets:
Semiconductor	$	55,007	$	51,648
SiC/LED		12,934		12,717
Non-segment related*		36,586		37,733
	$	104,527	$	102,098

* Non-segment related assets include cash, property, income tax assets and other assets.