v3.23.1
Statements of Stockholders' Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Beginning balance, value at Dec. 31, 2021 $ 23 $ 194,212   $ (165,854) $ 28,381
Beginning balance, shares at Dec. 31, 2021 23,207        
Stock-based compensation 726   726
Stock-based compensation, shares 161        
Stock option exercise 166   166
Stock option exercise, shares 25        
Net loss   (4,086) (4,086)
Ending balance, value at Mar. 31, 2022 $ 23 195,104   (169,940) 25,187
Ending balance, shares at Mar. 31, 2022 23,393        
Beginning balance, value at Dec. 31, 2022 $ 24 203,585 (183,295) 20,314
Beginning balance, shares at Dec. 31, 2022 23,973        
Stock-based compensation 927 927
Stock-based compensation, shares 297        
Stock option exercise 39 39
Stock option exercise, shares 10        
At-the-market sale of stock, net of commissions and expenses 274 274
At-the-market sale of stock, net of commissions and expenses, shares 50        
Net loss (5,019) (5,019)
Unrealized gain (loss) on available-for-sale securities (2) (2)
Ending balance, value at Mar. 31, 2023 $ 24 $ 204,825 $ (2) $ (18,314) $ 16,533
Ending balance, shares at Mar. 31, 2023 24,330