Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Net sales	$ 112,454	$ 111,212
Cost of goods sold	101,817	101,110
Gross profit	10,637	10,102
Selling, general and administrative expenses	15,274	15,216
Goodwill impairment	8,294	0
Amortization of intangible assets	1,648	1,705
Gain on disposal and impairment of assets	(7,535)	(905)
Operating loss	(7,044)	(5,914)
Interest income	(4)	(8)
Interest expense	1,057	2,139
Foreign currency exchange gain, net	(7)	(114)
Other expense (income), net	117	(400)
Loss before income tax benefit	(8,207)	(7,531)
Income tax benefit	(701)	(361)
Net loss	$ (7,506)	$ (7,170)
Net loss per share:
Basic (in dollars per share)	$ (1.35)	$ (1.30)
Diluted (in dollars per share)	$ (1.35)	$ (1.30)
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Weighted-average number of common shares (basic) (in shares)	5,566	5,523
Weighted-average number of common shares (diluted) (in shares)	5,566	5,523