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4. INCOME TAXES (Tables)
12 Months Ended
Jun. 30, 2018
Income Tax Disclosure [Abstract]  
Schedule of tax rate reconciliation
   2018   2017 
Income tax expense (benefit) at federal statutory rate   (21.0)%   (34.0)%
Increase (decrease) in tax resulting from:          
State taxes, net of federal benefit   (6.3)   (5.4)
Change in valuation allowance   20.4    30.9 
Stock based compensation   4.5    8.0 
Nondeductible items   2.3    0.2 
Prior-year tax adjustments       0.2 
Effective tax rate   (0.1)%   (0.1)%
Schedule of deferred tax assets and liabilities
   2018   2017 
Deferred tax assets:          
Net operating loss carry forwards  $2,601,000   $3,716,000 
Tax credit carry forwards   377,000    404,000 
Reserves and accruals not yet deducted for tax purposes   360,000    383,000 
Total deferred tax assets   3,338,000    4,503,000 
Valuation allowance   (3,338,000)   (4,503,000)
Net deferred tax asset  $   $