Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Net sales	$ 111,212	$ 121,458
Cost of goods sold	101,110	108,094
Gross profit	10,102	13,364
Selling, general and administrative expenses	15,216	17,773
Amortization of intangible assets	1,705	2,168
(Gain) loss on disposal and impairment of assets	(905)	4,957
Operating loss	(5,914)	(11,534)
Interest income	(8)	(56)
Interest expense	2,139	2,208
Foreign currency exchange (gain) loss, net	(114)	47
Other income, net	(400)	(593)
Loss from operations before income tax expense (benefit)	(7,531)	(13,140)
Income tax expense (benefit)	(361)	1,069
Net loss	$ (7,170)	$ (14,209)
Net loss per share:
Basic (in dollars per share)	$ (1.30)	$ (2.59)
Diluted (in dollars per share)	$ (1.30)	$ (2.59)
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Weighted-average number of common shares (basic) (in shares)	5,523	5,487
Weighted-average number of common shares (diluted) (in shares)	5,523	5,487