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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares
Dec. 31, 2020
Dec. 31, 2019
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 19,172,020 3,339,541
Common stock, shares outstanding 19,171,859 3,339,380
Treasury stock, shares 161 161