Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Preferred Stock
8.625% Series A Cumulative, Perpetual Preferred Stock
Preferred Stock
8.375% Series B Cumulative, Perpetual Preferred Stock
Preferred Stock
Convertible preferred stock
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Total
Balance at beginning of period at Dec. 31, 2021 $ 49 $ 2   $ 85 $ 1,307,030 $ (1,165,288) $ 141,876
Balance at beginning of period (in shares) at Dec. 31, 2021 984,000   5,000 11,315,000      
Increase (Decrease) in Stockholders' Equity              
Exercise of stock options       $ 1 632   633
Exercise of stock options (in shares)       91,000      
Issuance of common stock related to 401(k) contribution         85   85
Issuance of common stock related to 401(k) contribution (in shares)       4,000      
Stock-based compensation expense         978   978
Preferred stock dividends         (1,368)   (1,368)
Net loss and comprehensive loss           (2,280) (2,280)
Balance at end of period at Mar. 31, 2022 $ 49 $ 2   $ 86 1,307,357 (1,167,568) 139,924
Balance at end of period (in shares) at Mar. 31, 2022 984,000   5,000 11,410,000      
Balance at beginning of period at Dec. 31, 2022 $ 49     $ 86 1,306,271 (1,182,392) $ 124,014
Balance at beginning of period (in shares) at Dec. 31, 2022 984,000 2,000 5,000 11,454,000      
Increase (Decrease) in Stockholders' Equity              
Exercise of stock options (in shares)             0
Issuance of common stock related to 401(k) contribution         123   $ 123
Issuance of common stock related to 401(k) contribution (in shares)       7,000      
Stock-based compensation expense         1,570   1,570
Preferred stock dividends         (1,368)   (1,368)
Net loss and comprehensive loss           (9,813) (9,813)
Balance at end of period at Mar. 31, 2023 $ 49     $ 86 $ 1,306,596 $ (1,192,205) $ 114,526
Balance at end of period (in shares) at Mar. 31, 2023 984,000 2,000 5,000 11,461,000