Consolidated Condensed Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net sales	$ 30,999	$ 28,672	$ 86,696	$ 84,121
Cost of goods sold	23,842	20,959	67,665	64,637
Gross profit	7,157	7,713	19,031	19,484
Selling, general and administrative expenses	4,062	3,064	10,965	9,562
Amortization of intangible assets	545	492	1,635	1,544
Loss (gain) on disposal of operating assets	(1)	33	(3)	(89)
Operating income	2,551	4,124	6,434	8,467
Interest income	(4)	(4)	(14)	(18)
Interest expense	45	76	181	261
Foreign currency exchange (gain) loss, net	(2)	7	4	7
Other income, net	(108)	(108)	(325)	(294)
Income from continuing operations before income tax provision	2,620	4,153	6,588	8,511
Income tax provision	637	1,288	1,940	2,701
Income from continuing operations	1,983	2,865	4,648	5,810
Income (loss) from discontinued operations, net of tax	(76)	(387)	(368)	1,518
Net income	$ 1,907	$ 2,478	$ 4,280	$ 7,328
Income per share from continuing operations
Basic (in dollars per share)	$ 0.37	$ 0.53	$ 0.86	$ 1.08
Diluted (in dollars per share)	$ 0.37	$ 0.53	$ 0.86	$ 1.08
Income (loss) per share from discontinued operations, net of tax
Basic (in dollars per share)	$ (0.01)	$ (0.07)	$ (0.07)	$ 0.28
Diluted (in dollars per share)	$ (0.01)	$ (0.07)	$ (0.07)	$ 0.28
Net income per share
Basic (in dollars per share)	$ 0.36	$ 0.46	$ 0.79	$ 1.36
Diluted (in dollars per share)	$ 0.36	$ 0.46	$ 0.79	$ 1.36
Weighted-average common shares outstanding (basic) (in shares)	5,413	5,374	5,399	5,359
Weighted-average common shares outstanding (diluted) (in shares)	5,431	5,402	5,420	5,399