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FAIR VALUE MEASUREMENTS (Details) - USD ($)
Dec. 31, 2017
Jun. 30, 2017
Money Market Account $ 34,769,696 $ 40,019,336
Corporate debt securities 0 249,837
Total 34,769,696 40,269,173
Level 1    
Money Market Account 34,769,696 40,019,336
Corporate debt securities 0 249,837
Total 34,769,696 40,269,173
Level 2    
Money Market Account 0 0
Corporate debt securities 0 0
Total 0 0
Level 3    
Money Market Account 0 0
Corporate debt securities 0 0
Total $ 0 $ 0