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3. STOCKHOLDERS' EQUITY (Details - Option activity) - $ / shares
6 Months Ended 12 Months Ended
Dec. 31, 2016
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Stock option activity        
Number of Shares options granted 0      
Stock Options [Member]        
Stock option activity        
Number of stock options outstanding - at beginning 1,136,000 1,079,079 409,087  
Number of Shares options granted   160,000 714,000  
Number of Shares options cancelled   (103,079) (44,008)  
Number of stock options outstanding - at ending 1,134,400 1,136,000 1,079,079 409,087
Weighted average exercise price options outstanding- at beginning $ 0.79 $ 1.43 $ 4.41  
Weighted average exercise price - grants   0.49 0.75  
Weighted average exercise price - cancelled 6.25 7.03 18.04  
Weighted average exercise price options outstanding - at end $ 0.78 $ 0.79 $ 1.43 $ 4.41
Weighted average contractual life 7 years 6 months 8 years 8 years 5 months 16 days 6 years 3 months 7 days