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Consolidated Statements of Comprehensive Income - USD ($)
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Net income $ 5,186,331 $ 5,275,235
Other comprehensive income (loss)    
Foreign currency translation gain (loss) 113,444 (30,303)
Changes in short - term investment valuation 36,197
Comprehensive income $ 5,335,972 $ 5,244,932