Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Net sales	$ 28,681	$ 30,167	$ 80,726	$ 92,942
Cost of goods sold	25,402	26,599	72,889	81,546
Gross profit	3,279	3,568	7,837	11,396
Selling, general and administrative expenses	3,864	3,918	11,796	13,617
Amortization of intangible assets	427	579	1,286	1,744
Loss (gain) on disposal or impairment of operating assets	357	4,369	(1,071)	4,363
Operating loss	(1,369)	(5,298)	(4,174)	(8,328)
Interest income	0	(12)	(29)	(42)
Interest expense	417	464	1,304	1,682
Foreign currency exchange (gain) loss, net	(32)	(6)	(112)	11
Other income, net	(4)	(110)	(400)	(324)
Loss before income tax (benefit) expense	(1,750)	(5,634)	(4,937)	(9,655)
Income tax (benefit) expense	(218)	568	(456)	812
Net loss	$ (1,532)	$ (6,202)	$ (4,481)	$ (10,467)
Net loss per share
Basic (in dollars per share)	$ (0.28)	$ (1.13)	$ (0.81)	$ (1.91)
Diluted (in dollars per share)	$ (0.28)	$ (1.13)	$ (0.81)	$ (1.91)
Weighted-average number of common shares (basic) (in shares)	5,535	5,499	5,524	5,480
Weighted-average number of common shares (diluted) (in shares)	5,535	5,499	5,524	5,480