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Note 3. Stock-based Compensation (Details) - USD ($)
3 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Details    
Allocated Share-based Compensation Expense $ 15,011 $ 17,454
Common Stock, Capital Shares Reserved for Future Issuance 500,000  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 312,973  
Employee Service Share Based Compensation Unrecognized Compensation Costs On Nonvested Awards Weighted Average Period Of Recognition four to ten years  
Aggregate intrinsic value of options outstanding $ 2,802