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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Dec. 31, 2019
Jun. 30, 2019
STOCKHOLDERS' EQUITY    
Preferred stock, par value $ 0.001 $ 0.001
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 50,000,000 50,000,000
Common stock, shares issued 33,329,566 33,303,218
Common stock, shares outstanding 33,304,566 33,278,218
Treasury stock, shares 25,000 25,000