Quarterly report pursuant to Section 13 or 15(d)

Computation of Net Loss Per Share of Common Stock (Components of Net Income (Loss) Per Basic and Diluted Share) (Details)

v3.22.1
Computation of Net Loss Per Share of Common Stock (Components of Net Income (Loss) Per Basic and Diluted Share) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Net loss per share – basic    
Net loss $ (4,640) $ (4,450)
Weighted average number of shares outstanding, basic (in shares) 18,014 16,443
Net loss per share – basic (in dollars per share) $ (0.26) $ (0.27)
Net income (loss) per share – diluted    
Net loss $ (4,640) $ (4,450)
Numerator effect of dilutive securities 0 (357)
Net loss available to common stockholders, diluted $ (4,640) $ (4,807)
Weighted average number of shares outstanding, basic (in shares) 18,014 16,443
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]    
Weighted average number diluted shares outstanding adjustment 0 236
Weighted average number of shares outstanding, diluted (in shares) 18,014 16,679
Net loss per share – diluted (in dollars per share) $ (0.26) $ (0.29)
Warrants    
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]    
Incremental common shares attributable to dilutive effect of call options and warrants (in shares) 0 236