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Note 6 - Other Assets (Detail) - Other assets (USD $)
Jun. 30, 2012
Oct. 01, 2011
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
Intangible Assets, Net [Member]
   
Intangible assets, net of accumulated amortization 3,655,065  
Patents and Trademarks [Member]
   
Intangible assets, net of accumulated amortization $ 313,012 $ 310,289