Income (Loss) Per Share Data - Components of Basic and Diluted Income Per Share Computation (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Net income from continuing operations available to common shareholders	$ 3,178	$ 3,174	$ 10,846	$ 7,275
Basic weighted average shares outstanding	14,413	17,528	14,563	17,505
Dilutive effect of outstanding stock options, non-vested restricted stock, restricted stock units and performance shares	326	119	260	88
Diluted weighted average shares outstanding	14,739	17,647	14,823	17,593