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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Mar. 31, 2020
Dec. 31, 2019
CONDENSED CONSOLIDATED BALANCE SHEETS    
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares outstanding 69,541,527 65,691,527
Treasury stock, shares 336,398 336,398