Consolidated Condensed Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Net sales	$ 29,044	$ 28,004	$ 55,696	$ 55,448
Cost of goods sold	22,740	22,098	43,822	43,678
Gross profit	6,304	5,906	11,874	11,770
Selling, general and administrative expenses	3,444	2,957	6,902	6,498
Amortization of intangible assets	545	493	1,090	1,051
Loss (gain) on disposal of operating assets	0	3	(2)	(122)
Operating income	2,315	2,453	3,884	4,343
Interest income	(5)	(9)	(9)	(14)
Interest expense	51	79	136	185
Foreign currency exchange (gain) loss, net	(1)	(8)	6	0
Other income, net	(108)	(109)	(217)	(186)
Income from continuing operations before income tax provision	2,378	2,500	3,968	4,358
Income tax provision	867	731	1,303	1,412
Income from continuing operations	1,511	1,769	2,665	2,946
Income (loss) from discontinued operations, net of tax	(85)	(334)	(292)	1,904
Net income	$ 1,426	$ 1,435	$ 2,373	$ 4,850
Income per share from continuing operations
Basic (in dollars per share)	$ 0.28	$ 0.33	$ 0.49	$ 0.55
Diluted (in dollars per share)	$ 0.28	$ 0.33	$ 0.49	$ 0.55
Income (loss) per share from discontinued operations, net of tax
Basic (in dollars per share)	$ (0.02)	$ (0.06)	$ (0.05)	$ 0.36
Diluted (in dollars per share)	$ (0.02)	$ (0.06)	$ (0.05)	$ 0.35
Net income per share
Basic (in dollars per share)	$ 0.26	$ 0.27	$ 0.44	$ 0.91
Diluted (in dollars per share)	$ 0.26	$ 0.27	$ 0.44	$ 0.90
Weighted-average common shares outstanding (basic) (in shares)	5,407	5,364	5,393	5,353
Weighted-average common shares outstanding (diluted) (in shares)	5,423	5,404	5,415	5,398