Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenues	$ 106,569	$ 106,575
Cost of goods sold	93,133	88,304
Gross profit	13,436	18,271
Selling, general and administrative expenses	15,902	16,874
Research and development expenses	1,824	1,673
Amortization of intangible assets	0	44
Operating loss	(4,290)	(320)
Interest expense	47	50
Interest income	(50)	(111)
Loss before income taxes	(4,287)	(259)
Income tax provision (benefit)	(1,441)	105
Net loss	$ (2,846)	$ (364)
Loss per share:
Basic (in dollars per share)	$ (0.24)	$ (0.03)
Diluted (in dollars per share)	$ (0.24)	$ (0.03)
Weighted average shares:
Basic (in shares)	11,765	11,674
Diluted (in shares)	11,765	11,674
Dividends per share (in dollars per share)	$ 0.26	$ 0.26