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Note 6 - Other Assets (Tables)
9 Months Ended
Jun. 30, 2012
Schedule of Other Assets, Noncurrent [Table Text Block]
   
June 30, 2012
   
Oct. 1, 2011
 
Intangible assets, net of accumulated  amortization of $236,257 (June 30, 2012)
  $ 3,655,065      -  
Patents and trademarks, net of accumulated amortization of $1,691,437 (June 30, 2012)  and $1,635,243 (Oct. 1, 2011)
    313,012     $ 310,289  
Cash value of life insurance policies - Note 3
    2,087,431       1,939,129  
Other
    294,952       350,275  
    $ 6,350,460     $ 2,599,693