Note 4 - Earnings Per Share (Detail) - Net income (loss) per share: (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Net income (in Dollars)	$ 2,977	$ 9,703
Average shares outstanding – basic	34,355,152	34,368,192
Impact of stock options	57	23
Average shares outstanding – diluted	34,412,453	34,391,084
Basic income per share (in Dollars per share)	$ 0.09	$ 0.28
Diluted income per share (in Dollars per share)	$ 0.09	$ 0.28
Denominator [Member]
Average shares outstanding – basic	34,355	34,368
Average shares outstanding – diluted	34,412	34,391