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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares | Dec. 31, 2020 | Dec. 31, 2019
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CONSOLIDATED BALANCE SHEETS |  |
Preferred stock, par value | $ 0.001 | $ 0.001
Preferred stock, shares authorized | 10,000,000 | 10,000,000
Preferred stock, shares issued | 0 | 0
Preferred stock, shares outstanding | 0 | 0
Common stock, par value | $ 0.001 | $ 0.001
Common stock, shares authorized | 150,000,000 | 150,000,000
Common stock, shares issued | 34,152,470 | 29,792,922
Common stock, shares outstanding | 34,152,470 | 29,792,922

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