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Note 6 - Property and Equipment
6 Months Ended
Mar. 31, 2015
Notes to Financial Statements  
Property, Plant and Equipment Disclosure [Text Block]
6
. PROPERTY AND EQUIPMENT
 
Property and equipment consisted of the following:
 
 
 
March 31,
 
 
September 30,
 
 
 
2015
 
 
2014
 
                 
Machinery and equipment
  $ 935,298     $ 903,798  
Office furniture and equipment
    853,997       720,548  
Leasehold improvements
    67,913       61,863  
Property and equipment, gross
    1,857,208       1,686,209  
Accumulated depreciation
    (1,443,301 )     (1,326,125 )
Property and equipment, net
  $ 413,907     $ 360,084  
 
 
 
Six months ended
 
 
 
March 31,
 
 
 
2015
 
 
2014
 
Depreciation expense
  $ 117,176     $ 84,413