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CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Preferred stock, par value | $ 0.001 | $ 0.001
Preferred stock, shares authorized | 10,000,000 | 10,000,000
Preferred stock, available to be designated | 9,485,000 | 9,485,000
Common stock, par value | $ 0.001 | $ 0.001
Common stock, shares authorized | 500,000,000 | 500,000,000
Common stock, shares issued | 3,535,339 | 1,982,039
Common stock, shares outstanding | 3,534,015 | 1,980,715
Treasury stock shares | 1,324 | 1,324
Series A Convertible Preferred Stock [Member] |  |
Series A redeemable convertible preferred stock, stated value per share | $ 10 | $ 10
Series A redeemable convertible preferred stock, shares designated | 500,000 | 500,000
Series A redeemable convertible preferred stock, shares issued |  |
Series A redeemable convertible preferred stock, shares outstanding |  |
Preferred stock, conversion price per share | $ 6.30 | $ 6.30
Series B Convertible Preferred Stock [Member] |  |
Preferred stock, par value | $ 1,000 | $ 1,000
Preferred stock, shares authorized | 15,000 | 15,000
Preferred stock, shares issued | 1,705 | 1,705
Preferred stock, shares outstanding | 1,705 | 1,705
Preferred stock, conversion price per share | $ 7.00 | $ 7.00

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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