Consolidated Condensed Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Net sales	$ 29,594	$ 30,143	$ 58,294	$ 54,869
Cost of goods sold	23,881	24,344	46,896	44,284
Gross margin	5,713	5,799	11,398	10,585
Selling, general and administrative expenses	3,258	2,885	7,062	5,681
Amortization of intangible assets	493	662	1,052	1,477
Loss (gain) on disposal of operating assets	3	0	(122)	0
Operating income	1,959	2,252	3,406	3,427
Interest income	(9)	(4)	(14)	(8)
Interest expense	79	134	185	228
Foreign currency exchange (gain) loss, net	(7)	10	0	(3)
Other income, net	(109)	(117)	(186)	(234)
Consolidated income from continuing operations before income tax provision	2,005	2,229	3,421	3,444
Income tax provision	536	777	1,031	1,159
Income from continuing operations	1,469	1,452	2,390	2,285
Income (loss) from discontinued operations, net of tax	(34)	272	2,460	625
Net income	$ 1,435	$ 1,724	$ 4,850	$ 2,910
Income per share from continuing operations
Basic	$ 0.27	$ 0.27	$ 0.45	$ 0.43
Diluted	$ 0.27	$ 0.27	$ 0.44	$ 0.43
Income (loss) per share from discontinued operations, net of tax
Basic	$ (0.01)	$ 0.05	$ 0.46	$ 0.12
Diluted	$ (0.01)	$ 0.05	$ 0.46	$ 0.12
Net income per share
Basic	$ 0.27	$ 0.32	$ 0.91	$ 0.55
Diluted	$ 0.27	$ 0.32	$ 0.90	$ 0.55
Weighted-average number of common shares (basic)	5,364	5,315	5,353	5,303
Weighted-average number of common shares (diluted)	5,404	5,336	5,398	5,326