v3.22.4
Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Beginning balance, value at Dec. 31, 2020 $ 22 $ 187,463 $ (150,140) $ 37,345
Beginning balance, shares at Dec. 31, 2020 22,375      
Stock-based compensation 2,973 2,973
Stock-based compensation, shares 89      
Warrant exercises
Warrant Exercise, shares 223      
Stock option exercises $ 1 3,533 3,534
Stock option exercise, shares 571      
Forfeited restricted stock awards
Forfeited restricted stock awards, shares (65)      
At-the-market sale of stock, net of commissions and expenses 243 243
At-the-market sale of stock, net of commissions and expenses, shares 14      
Net loss (15,714) (15,714)
Ending balance, value at Dec. 31, 2021 $ 23 194,212 (165,854) 28,381
Ending balance, shares at Dec. 31, 2021 23,207      
Stock-based compensation 3,367 3,367
Stock-based compensation, shares 194      
Stock option exercises 244 244
Stock option exercise, shares 45      
At-the-market sale of stock, net of commissions and expenses $ 1 5,762 5,763
At-the-market sale of stock, net of commissions and expenses, shares 527      
Net loss (17,441) (17,441)
Ending balance, value at Dec. 31, 2022 $ 24 $ 203,585 $ (183,295) $ 20,314
Ending balance, shares at Dec. 31, 2022 23,973