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Stock Options (Details 1) - $ / shares
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Outstanding Options, Average Remaining Contractual Life 3 years 9 months 22 days  
Exercisable Options, Number 139,032  
Options [Member]    
Outstanding Options, Exercise Price $ 1.21 $ 3.81
Outstanding Options, Number 85,000 141,000
Exercisable Options, Average Exercise Price $ 1.21  
Exercisable Options, Number 85,000  
Exercise Price Range One [Member] | Options [Member]    
Outstanding Options, Exercise Price $ 2.01  
Outstanding Options, Number 10,000  
Outstanding Options, Average Remaining Contractual Life 4 years 7 months 2 days  
Exercisable Options, Average Exercise Price $ 2.01  
Exercisable Options, Number 10,000  
Exercisable Options, Average Remaining Contractual Life 4 years 7 months 2 days  
Exercise Price Range Two [Member] | Options [Member]    
Outstanding Options, Exercise Price $ 1.10  
Outstanding Options, Number 75,000  
Outstanding Options, Average Remaining Contractual Life 3 years 26 days  
Exercisable Options, Average Exercise Price $ 1.10  
Exercisable Options, Number 75,000  
Exercisable Options, Average Remaining Contractual Life 3 years 26 days