Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Net sales	$ 31,302	$ 29,075	$ 62,776	$ 56,237
Cost of goods sold	27,643	25,513	54,948	50,566
Gross profit	3,659	3,562	7,828	5,671
Selling, general and administrative expenses	4,396	3,130	9,699	8,750
Amortization of intangible assets	573	613	1,165	1,328
(Gain) loss on disposal of operating assets	0	30	(6)	32
Operating loss	(1,310)	(211)	(3,030)	(4,439)
Interest income	(16)	(22)	(30)	(32)
Interest expense	541	436	1,219	845
Foreign currency exchange loss, net	12	20	17	34
Other income, net	(107)	(107)	(214)	(214)
Loss from operations before income tax expense (benefit)	(1,740)	(538)	(4,022)	(5,072)
Income tax expense (benefit)	(83)	(239)	244	(2,175)
Net loss	$ (1,657)	$ (299)	$ (4,266)	$ (2,897)
Net loss per share
Basic (in dollars per share)	$ (0.30)	$ (0.05)	$ (0.78)	$ (0.53)
Diluted (in dollars per share)	$ (0.30)	$ (0.05)	$ (0.78)	$ (0.53)
Weighted-average number of common shares (basic) (in shares)	5,479	5,464	5,473	5,458
Weighted-average number of common shares (diluted) (in shares)	5,479	5,464	5,473	5,458