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Note 13 - Major Customers (Tables)
9 Months Ended
Jun. 30, 2017
Notes Tables  
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
 
 
Three months ended
 
 
Nine months ended
 
 
 
June 30,
 
 
June 30,
 
 
 
2017
 
 
2016
 
 
2017
 
 
2016
 
Americas
  $
1,367,044
    $
811,296
    $
5,088,553
    $
4,426,953
 
Europe, Middle East and Africa
   
150,474
     
390,732
     
1,204,267
     
888,054
 
Asia Pacific
   
2,612,036
     
3,840,141
     
6,520,460
     
6,150,668
 
Total Revenues
  $
4,129,554
    $
5,042,169
    $
12,813,280
    $
11,465,675