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Capital Stock Transactions (Stock Option Plans) (Narrative) (Details)
$ in Thousands
12 Months Ended
Jun. 30, 2015
USD ($)
plan
shares
Jun. 30, 2014
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options reserved for future grants, number 66,859  
Options outstanding, number 813,942 995,846
Options exercisable, number 747,083  
Stock Options [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of Plans | plan 2  
Options reserved for future grants, number 995,846  
Vesting period 5 years  
Exercise period 10 years  
Patents [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Amortization of Intangible Assets | $ $ 67 $ 17