Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Net sales	$ 24,251	$ 31,473
Cost of goods sold	22,222	27,305
Gross profit	2,029	4,168
Selling, general and administrative expenses	4,072	5,303
Amortization of intangible assets	425	592
Gain on disposal of operating assets	(1,400)	(6)
Operating loss	(1,068)	(1,721)
Interest income	(9)	(14)
Interest expense	444	678
Foreign currency exchange (gain) loss, net	(36)	4
Other income, net	(316)	(107)
Loss from operations before income tax expense	(1,151)	(2,282)
Income tax expense (benefit)	(240)	327
Net loss	$ (911)	$ (2,609)
Net loss per share
Basic (in dollars per share)	$ (0.17)	$ (0.48)
Diluted (in dollars per share)	$ (0.17)	$ (0.48)
Weighted-average number of common shares (basic) (in shares)	5,502	5,467
Weighted-average number of common shares (diluted) (in shares)	5,502	5,467