Stock Option Activity (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2012
Number of Stock Options
Options outstanding at beginning of period	193,182
Forfeited/expired	(155,990)
Options outstanding at end of period	37,192
Vested at end of period	37,192
Options exercisable at end of period	37,192
Weighted-Average Remaining Contractual Term
Options outstanding at end of period	10 months 24 days
Vested at end of period	10 months 24 days
Options exercisable at end of period	10 months 24 days
Weighted Average Exercise Price
Options outstanding at beginning of period	$ 13.11
Forfeited/expired	$ 13.33
Options outstanding at end of year	$ 12.17
Vested at end of period	$ 12.17
Options exercisable at end of period	$ 12.17
Aggregate Intrinsic Value
Options outstanding at end of period	$ 3
Vested at end of period	3
Options exercisable at end of period	$ 3