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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       (8,916)   (8,916)
Other comprehensive loss, net of taxes         (4,276) (4,276)
Stock-based compensation expense     7,003     7,003
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 $ 4,196   (4,196)      
Proceeds from exercise of stock options and warrants   $ 1 3,483     3,484
Proceeds from exercise of stock options and warrants (in shares)   386,242        
Balance at Jun. 30, 2021 $ 6,275 $ 46 841,537 (200,929) 1,100 648,029
Balance (in shares) at Jun. 30, 2021 200,000 45,892,448        
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        
Net loss       (5,389)   (5,389)
Other comprehensive loss, net of taxes         220 220
Stock-based compensation expense     4,025     4,025
Paid-in-kind preferred stock dividend, including beneficial conversion feature $ 2,000   (2,000)      
Proceeds from exercise of stock options   $ 1 1,897     1,898
Proceeds from exercise of stock options (in shares)   198,756        
Balance at Jun. 30, 2021 $ 6,275 $ 46 841,537 (200,929) 1,100 648,029
Balance (in shares) at Jun. 30, 2021 200,000 45,892,448        
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       (22,581)   (22,581)
Other comprehensive loss, net of taxes         (27,933) (27,933)
Stock-based compensation expense     9,383     9,383
Issuance of common stock for Cell&Co acquisition     479     479
Issuance of common stock for Cell&Co acquisition (in shares)   15,152        
Paid-in-kind preferred stock dividend, including beneficial conversion feature $ 4,000   (4,000)      
Repurchase of common stock   $ (1) (24,999) (8,349)   $ (33,349)
Repurchase of common stock (in shares)   (1,341,571)       1,341,571
Vesting of restricted stock units (in shares)   80,912        
Proceeds from exercise of stock options     597     $ 597
Proceeds from exercise of stock options (in shares)   111,855        
Balance at Jun. 30, 2022 $ 14,275 $ 49 1,081,747 (498,471) (29,176) 568,424
Balance (in shares) at Jun. 30, 2022 200,000 48,482,502        
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        
Net loss       (9,177)   (9,177)
Other comprehensive loss, net of taxes         (12,854) (12,854)
Stock-based compensation expense     5,258     5,258
Issuance of common stock for Cell&Co acquisition     479     479
Issuance of common stock for Cell&Co acquisition (in shares)   15,152        
Paid-in-kind preferred stock dividend, including beneficial conversion feature $ 2,000   (2,000)      
Repurchase of common stock   $ (1) (24,999)     (25,000)
Repurchase of common stock (in shares)   (1,035,271)        
Vesting of restricted stock units (in shares)   22,517        
Proceeds from exercise of stock options     284     284
Proceeds from exercise of stock options (in shares)   26,797        
Balance at Jun. 30, 2022 $ 14,275 $ 49 $ 1,081,747 $ (498,471) $ (29,176) $ 568,424
Balance (in shares) at Jun. 30, 2022 200,000 48,482,502