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Note 3 - Cash, Cash Equivalents and Investments
3 Months Ended
Dec. 31, 2011
Cash and Cash Equivalents, Policy [Policy Text Block]
Note  3. Cash, Cash Equivalents and Investments

The Company currently invests its excess cash in money market accounts and bank certificates of deposit (CDs) with a term of not more than three years. CDs with original maturities of more than three months are reported as held-to-maturity investments and are carried at amortized cost. The maturity dates of the Company’s CDs at December 31, 2011 and September 30, 2011 are as follows:

   
December 31,
2011
 
September 30,
2010
 
Less than one year
  $ 3,878,000     $ 1,849,000  
1-3 years
    5,314,000       2,707,000  
Total
  $ 9,192,000     $ 4,445,000