Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net sales	$ 25,078	$ 26,207
Cost of goods sold	21,155	22,883
Gross profit	3,923	3,324
Selling, general and administrative expenses	3,827	4,208
Amortization of intangible assets	269	409
Gain on insurance recoveries	(2,495)	0
Operating income (loss)	2,322	(1,293)
Interest expense	165	251
Foreign currency exchange loss, net	7	1
Other loss (income), net	62	(108)
Income (loss) before income tax benefit	2,088	(1,437)
Income tax benefit	(905)	(95)
Net income (loss)	$ 2,993	$ (1,342)
Net income (loss) per share
Basic (in dollars per share)	$ 0.53	$ (0.24)
Diluted (in dollars per share)	$ 0.51	$ (0.24)
Weighted-average number of common shares (basic) (in shares)	5,691	5,612
Weighted-average number of common shares (diluted) (in shares)	5,890	5,612