Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Common Stock
Additional Paid-in Capital
Treasury Stock
Retained Earnings (Accumulated Deficit)
Total
Balance at Dec. 31, 2018 $ 3 $ 63,935 $ (1,654) $ (939) $ 61,345
Balance (in shares) at Dec. 31, 2018 28,289   1,357    
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options   119 $ 106   225
Exercise of stock options (in shares) 35   (87)    
Stock grants   48     48
Stock grants (in shares) 22        
Stock-based compensation   300     300
Net income (loss)       (5,822) (5,822)
Balance at Dec. 31, 2019 $ 3 64,402 $ (1,548) (6,761) 56,096
Balance (in shares) at Dec. 31, 2019 28,346   1,270    
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options   19 $ 10   29
Exercise of stock options (in shares) 8   (9)    
Stock grants   54     54
Stock grants (in shares) 31        
Stock-based compensation   351     351
Net income (loss)       147 147
Balance at Dec. 31, 2020 $ 3 64,826 $ (1,538) (6,614) 56,677
Balance (in shares) at Dec. 31, 2020 28,385   1,261    
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of stock options   146 $ 246   392
Exercise of stock options (in shares)     (201)    
Equity offering, net $ 1 42,973     42,974
Equity offering, net (in shares) 6,917        
Stock-based compensation   966     966
Net income (loss)       11,706 11,706
Balance at Dec. 31, 2021 $ 4 $ 108,911 $ (1,292) $ 5,092 $ 112,715
Balance (in shares) at Dec. 31, 2021 35,302   1,060