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4. STOCK-BASED COMPENSATION (Dec 2016) (Details - Options by exercise price) - $ / shares
 6 Months Ended 12 Months Ended
Dec. 31, 2016
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2014
Stock Options [Member]        
Range of exercise prices $0.27-$7.75 $0.27-$7.75    
Number of shares outstanding 1,134,400 1,136,000 1,079,079 409,087
Weighted average contractual life 7 years 6 months 8 years 8 years 5 months 16 days 6 years 3 months 7 days
Weighted average exercise price $ 0.78 $ 0.79 $ 1.43 $ 4.41
Exercisable number of shares 848,400 783,333    
Exercisable weighted average exercise price $ 0.83 $ 0.86    
Option 1 [Member]        
Range of exercise prices .27 0.27    
Number of shares outstanding 40,000 40,000    
Weighted average contractual life 4 years 6 months 15 days 5 years 15 days    
Weighted average exercise price $ 0.27 $ 0.27    
Exercisable number of shares 40,000 40,000    
Exercisable weighted average exercise price $ 0.27 $ .27    
Option 2 [Member]        
Range of exercise prices .48 0.48    
Number of shares outstanding 60,000 60,000    
Weighted average contractual life 9 years 3 months 9 years 9 months    
Weighted average exercise price $ 0.48 $ .48    
Exercisable number of shares 20,000 20,000    
Exercisable weighted average exercise price $ 0.48 $ .48    
Option 3 [Member]        
Range of exercise prices .50 0.50    
Number of shares outstanding 80,000 100,000    
Weighted average contractual life 9 years 5 months 19 days 8 years 11 months 23 days    
Weighted average exercise price $ 0.50 $ .50    
Exercisable number of shares 35,000 0    
Exercisable weighted average exercise price $ 0.50 $ .50    
Option 4 [Member]        
Range of exercise prices .50 0.55    
Number of shares outstanding 20,000 37,000    
Weighted average contractual life 4 years 5 months 19 days 5 years 7 months 13 days    
Weighted average exercise price $ 0.50 $ .55    
Exercisable number of shares 20,000 37,000    
Exercisable weighted average exercise price $ 0.50 $ .55    
Option 5 [Member]        
Range of exercise prices .55 0.73    
Number of shares outstanding 37,000 603,000    
Weighted average contractual life 5 years 1 month 10 days 8 years 10 months 17 days    
Weighted average exercise price $ 0.55 $ .73    
Exercisable number of shares 37,000 402,000    
Exercisable weighted average exercise price $ 0.55 $ .73    
Option 6 [Member]        
Range of exercise prices .73 0.85    
Number of shares outstanding 603,000 9,000    
Weighted average contractual life 8 years 4 months 17 days 6 years 6 months 4 days    
Weighted average exercise price $ 0.73 $ .85    
Exercisable number of shares 402,000 9,000    
Exercisable weighted average exercise price $ 0.73 $ .85    
Option 7 [Member]        
Range of exercise prices .85 0.90    
Number of shares outstanding 9,000 9,000    
Weighted average contractual life 6 years 4 days 7 years 6 months 4 days    
Weighted average exercise price $ 0.85 $ .90    
Exercisable number of shares 9,000 9,000    
Exercisable weighted average exercise price $ 0.85 $ .90    
Option 8 [Member]        
Range of exercise prices .90 0.95    
Number of shares outstanding 9,000 65,000    
Weighted average contractual life 7 years 4 days 8 years 11 days    
Weighted average exercise price $ 0.90 $ .95    
Exercisable number of shares 9,000 53,333    
Exercisable weighted average exercise price $ 0.90 $ .95    
Option 9 [Member]        
Range of exercise prices .95 1.20    
Number of shares outstanding 65,000 207,800    
Weighted average contractual life 7 years 6 months 11 days 5 years 8 months 1 day    
Weighted average exercise price $ 0.95 $ 1.20    
Exercisable number of shares 65,000 207,800    
Exercisable weighted average exercise price $ 0.95 $ 1.20    
Option 10 [Member]        
Range of exercise prices 1.20 1.25    
Number of shares outstanding 207,800 1,200    
Weighted average contractual life 5 years 2 months 1 day 2 years 4 months 28 days    
Weighted average exercise price $ 1.20 $ 1.25    
Exercisable number of shares 207,800 1,200    
Exercisable weighted average exercise price $ 1.20 $ 1.25    
Option 11 [Member]        
Range of exercise prices 1.25 1.35    
Number of shares outstanding 1,200 1,200    
Weighted average contractual life 1 year 10 months 24 days 3 years 4 months 24 days    
Weighted average exercise price $ 1.25 $ 1.35    
Exercisable number of shares 1,200 1,200    
Exercisable weighted average exercise price $ 1.25 $ 1.35    
Option 12 [Member]        
Range of exercise prices 1.35 6.25    
Number of shares outstanding 1,200 1,600    
Weighted average contractual life 2 years 10 months 24 days 4 months 28 days    
Weighted average exercise price $ 1.35 $ 6.25    
Exercisable number of shares 1,200 1,600    
Exercisable weighted average exercise price $ 1.35 $ 6.25    
Option 13 [Member]        
Range of exercise prices 7.75 7.75    
Number of shares outstanding 1,200 1,200    
Weighted average contractual life 1 month 2 days 1 year 4 months 28 days    
Weighted average exercise price $ 7.75 $ 7.75    
Exercisable number of shares 1,200 1,200    
Exercisable weighted average exercise price $ 7.75 $ 7.75