Shares Used to Compute Earnings (Loss) Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Computation Of Basic And Diluted Earnings Per Common Share [Line Items]
Income (loss) from continuing operations	$ 1,151	$ 35
Basic weighted-average shares	7,670,000	7,540,000
Diluted:
Weighted-average shares, basic	7,670,000	7,540,000
Weighted-average shares, diluted	7,876,000	7,621,000
Basic earnings (loss) per share from continuing operations	$ 0.15	$ 0.00
Diluted earnings (loss) per share from continuing operations	$ 0.15	$ 0.00
Stock Option
Diluted:
Dilutive Effect of Stock	171,000	64,000
Restricted Stock
Diluted:
Dilutive Effect of Stock	35,000	17,000