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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Mar. 31, 2019
Dec. 31, 2018
CONDENSED CONSOLIDATED BALANCE SHEETS    
Common stock, shares authorized 100,000,000 100,000,000
Common stock, par value $ 0.001 $ 0.001
Common stock, shares issued 1,494,314 1,436,555
Common stock, shares outstanding 1,494,153 1,436,394
Treasury stock, shares 161 161