Reconciliation of Computation of Basic Income or Loss Per Share to Diluted Income or Loss Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Basic net income (loss) per share:
Net income (loss)	$ (704)	$ 418	$ (4,079)	$ 1,211
Less: Deemed dividend for Series A Preferred Shares		(3,277)		(3,277)
Less: Preferred dividend		(991)		(991)
Net income (loss) applicable to common shareholders	(704)	(3,850)	(4,079)	(3,057)
Weighted average common shares outstanding	7,259	5,911	7,079	5,247
Basic net income (loss) per share	$ (0.10)	$ (0.65)	$ (0.58)	$ (0.58)
Diluted net income (loss) per share:
Diluted net income (loss) applicable to common shareholders	$ (704)	$ (3,850)	$ (4,079)	$ (3,057)
Weighted average common shares outstanding	7,259	5,911	7,079	5,247
Dilutive stock options/shares
Diluted weighted average common shares outstanding	7,259	5,911	7,079	5,247
Diluted net income (loss) per share	$ (0.10)	$ (0.65)	$ (0.58)	$ (0.58)