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Note 9. Income Taxes (Tables)
12 Months Ended
Jun. 30, 2012
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   
2012
   
2011
 
Expected income tax benefit at statutory rate
  $ (2,198,000 )   $ (2,379,000 )
State taxes, net of federal benefit
    (198,000 )     (214,000 )
Permanent differences
    12,000       6,000  
Expiration of NOLs
    280,000       1,346,000  
Change in valuation allowance
    2,104,000       1,241,000  
Income tax benefit
  $ -     $ -  
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
   
2012
   
2011
 
NOLs - noncurrent
  $ 16,265,000     $ 15,886,000  
Stock-based compensation - current
    3,102,000       1,619,000  
Deferred compensation - noncurrent
    395,000       153,000  
      19,762,000       17,658,000  
Valuation allowance
    (19,762,000 )     (17,658,000 )
Net deferred tax assets
  $ -     $ -