Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net sales	$ 24,873	$ 28,681	$ 81,331	$ 80,726
Cost of goods sold	23,486	25,402	75,119	72,889
Gross profit	1,387	3,279	6,212	7,837
Selling, general and administrative expenses	3,481	3,864	11,375	11,796
Goodwill impairment	8,294	0	8,294	0
Amortization of intangible assets	411	427	1,239	1,286
Loss (gain) on disposal or impairment of operating assets	0	357	(282)	(1,071)
Gain on insurance proceeds received	(3,304)	0	(4,468)	0
Operating loss	(7,495)	(1,369)	(9,946)	(4,174)
Interest income	(1)	0	(3)	(29)
Interest expense	230	417	838	1,304
Foreign currency exchange gain, net	(3)	(32)	(4)	(112)
Other income, net	(15)	(4)	(50)	(400)
Loss before income tax benefit	(7,706)	(1,750)	(10,727)	(4,937)
Income tax benefit	(336)	(218)	(816)	(456)
Net loss	$ (7,370)	$ (1,532)	$ (9,911)	$ (4,481)
Net loss per share
Basic (in dollars per share)	$ (1.32)	$ (0.28)	$ (1.78)	$ (0.81)
Diluted (in dollars per share)	$ (1.32)	$ (0.28)	$ (1.78)	$ (0.81)
Weighted-average number of common shares (basic) (in shares)	5,571	5,535	5,556	5,524
Weighted-average number of common shares (diluted) (in shares)	5,571	5,535	5,556	5,524