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Note 4 - Income Taxes (Detail) - A reconciliation of the beginning and ending balances of the total amounts of gross unrecognized tax benefits (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Balance, beginning of year $ 472  
Increases in tax positions in the current year 104 458
Lapse in statute of limitations (2)  
Accrued penalties and interest 37 14
Balance, end of period $ 611 $ 472