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Income Taxes - Deferred assets and liabilities using the effective statutory tax rate (Detail) (USD $)
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2011
Income Tax Disclosure [Abstract]      
Trading securities $ 237,921 $ 253,128  
Prepaid expenses (152,391) (201,124)  
Accumulated depreciation 85,208 60,837  
Available-for-sale securities & equity method (74,070) 640,280  
Accrued expenses 110,341 110,564  
Stock-based compensation expense 117,372 114,129  
Capital loss carryover 549,029    
Charitable contributions carryover 27,286    
Valuation Allowance (27,286) 0 0
Net deferred tax asset $ 873,410 $ 977,814