| Note 10 - Dividends | 9 Months Ended | 
|---|---|
| Jun. 30, 2012 | |
| Dividends Payable, Nature | 
          Note
          10 – Dividends
         
            During
            fiscal 2010, the Company commenced paying quarterly
            cash dividends. Since then, the Company’s Board
            of Directors has declared and paid ten consecutive
            quarterly cash dividends; nine of which were paid at
            the rate of $0.05 per share, and one at the increased
            rate of $0.06 per share (a 20% increase over the
            previous quarterly dividend rate of $0.05), which
            totaled approximately $1 .7 million and was paid
            on May 7, 2012.  The Company paid cash dividends
            of approximately $4.5 million during the nine months
            ended June 30, 2012 and $4.2 million during the nine
            months ended June 30, 2011.
           
            On
            July 12, 2012, the Company’s Board of Directors
            declared a quarterly cash dividend of $0.06 per
            share.  The Company will pay, from its cash on
            hand, approximately $1.7 million pursuant to the
            dividend on August 8, 2012, to stockholders of record
            as of August 1, 2012.
           |