Consolidated Statements of Operations - USD ($) shares in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Net sales	$ 121,458,000	$ 119,121,000
Cost of goods sold	108,094,000	107,039,000
Gross profit	13,364,000	12,082,000
Selling, general and administrative expenses	17,773,000	17,359,000
Goodwill impairment	0	4,164,000
Amortization of intangible assets	2,168,000	2,593,000
Loss on disposal or impairment of operating assets	4,957,000	31,000
Operating loss	(11,534,000)	(12,065,000)
Interest income	(56,000)	(51,000)
Interest expense	2,208,000	1,715,000
Foreign currency exchange loss, net	47,000	33,000
Other income, net	(593,000)	(429,000)
Loss from operations before income tax expense (benefit)	(13,140,000)	(13,333,000)
Income tax expense (benefit)	1,069,000	(1,998,000)
Net loss	$ (14,209,000)	$ (11,335,000)
Net loss per share:
Basic (in dollars per share)	$ (2.59)	$ (2.07)
Diluted (in dollars per share)	$ (2.59)	$ (2.07)
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Weighted-average number of common shares (basic) (in shares)	5,487	5,475
Weighted-average number of common shares (diluted) (in shares)	5,487	5,475