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Condensed Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Preferred Stock [Member]
Class C Preferred Stock
Common Stock [Member]
Additional Paid-In Capital [Member]
Accumulated Deficit [Member]
Other Comprehensive Income (Loss) [Member]
Total
Balance at Dec. 31, 2020 $ 2,844 $ 40 $ 566,451 $ (192,013) $ 5,376 $ 382,698
Balance (in shares) at Dec. 31, 2020 250,000 39,837,058        
Net loss       (3,527)   (3,527)
Other comprehensive loss, net of taxes         (4,496) (4,496)
Stock-based compensation expense     2,979     2,979
Issuance of common stock for board of director compensation     11     11
Issuance of common stock for board of director compensation (in shares)   229        
Cost of Series C preferred stock conversion     (1,800)     (1,800)
Issuance of common stock in public offering, net of costs of $17.7 million   $ 4 269,821     269,825
Issuance of common stock in public offering, net of costs of $17.7 million (in shares)   4,356,059        
Conversion of Series C preferred shares to common stock $ (765) $ 1 764      
Conversion of Series C preferred shares to common stock (in shares) (50,000) 1,312,860        
Paid-in-kind preferred stock dividend, including beneficial conversion feature $ 2,196   (2,196)      
Proceeds from exercise of stock options and warrants     1,585     1,585
Proceeds from exercise of stock options and warrants (in shares)   187,486        
Balance at Mar. 31, 2021 $ 4,275 $ 45 837,615 (195,540) 880 647,275
Balance (in shares) at Mar. 31, 2021 200,000 45,693,692        
Balance at Dec. 31, 2021 $ 10,275 $ 50 1,100,287 (467,541) (1,243) 641,828
Balance (in shares) at Dec. 31, 2021 200,000 49,616,154        
Net loss       (13,404)   (13,404)
Other comprehensive loss, net of taxes         (15,079) (15,079)
Stock-based compensation expense     4,125     4,125
Paid-in-kind preferred stock dividend, including beneficial conversion feature $ 2,000   (2,000)      
Repurchase of common stock       (8,349)   $ (8,349)
Repurchase of common stock (in shares)   (306,300)       8,300,000
Vesting of restricted stock units (in shares)   58,395        
Proceeds from exercise of stock options and warrants     313     $ 313
Proceeds from exercise of stock options and warrants (in shares)   85,058        
Balance at Mar. 31, 2022 $ 12,275 $ 50 $ 1,102,725 $ (489,294) $ (16,322) $ 609,434
Balance (in shares) at Mar. 31, 2022 200,000 49,453,307