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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023
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LIABILITIES, REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) |  |
Series C 6% super dividend redeemable convertible preferred stock, shares authorized (in shares) | 1,000 | 1,000
Series C 6% super dividend redeemable convertible preferred stock, shares issued (in shares) | 176 | 176
Series C 6% super dividend redeemable convertible preferred stock, shares outstanding (in shares) | 176 | 176
Series C 6% super dividend redeemable convertible preferred stock, redemption value | $ 8,018,000 |
Series C 6% super dividend redeemable convertible preferred stock liquidation value | $ 1,760,000 |
Stockholders' equity (deficit): |  |
Undesignated stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Undesignated stock, shares authorized (in shares) | 20,000,000 | 20,000,000
Undesignated stock, shares designated (in shares) | 20,000,000 | 20,000,000
Series A 12% convertible preferred stock, shares authorized (in shares) | 1,742,500 | 1,742,500
Series A 12% convertible preferred stock, shares issued (in shares) | 1,235,000 | 1,235,000
Series A 12% convertible preferred stock, shares outstanding (in shares) | 1,235,000 | 1,235,000
Series A 12% convertible preferred stock, liquidation value | $ 1,235,000,000 |
Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001
Common stock, shares authorized (in shares) | 150,000,000 | 150,000,000
Common stock, issued (in shares) | 63,157,235 | 61,852,914
Common stock, outstanding (in shares) | 63,157,235 | 61,852,914

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