Business Acquisition (Details 1) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Pro forma results of operations
Net sales	$ 120,439	$ 109,560
Net income	$ 10,349	$ 6,528
Net income per share (basic)	$ 1.93	$ 1.23
Net income per share (diluted)	$ 1.92	$ 1.21