Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Net sales	$ 26,207	$ 29,067
Cost of goods sold	22,883	26,330
Gross profit	3,324	2,737
Selling, general and administrative expenses	4,208	4,111
Amortization of intangible assets	409	414
Gain on disposal or impairment of operating assets	0	(282)
Operating loss	(1,293)	(1,506)
Interest income	0	(1)
Interest expense	251	292
Foreign currency exchange loss (gain), net	1	(1)
Other income, net	(108)	0
Loss before income tax benefit	(1,437)	(1,796)
Income tax benefit	(95)	(514)
Net loss	$ (1,342)	$ (1,282)
Net loss per share
Basic (in dollars per share)	$ (0.24)	$ (0.23)
Diluted (in dollars per share)	$ (0.24)	$ (0.23)
Weighted-average number of common shares (basic) (in shares)	5,612	5,535
Weighted-average number of common shares (diluted) (in shares)	5,612	5,535