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Share-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Schedule of weighted average assumptions for options granted The table below outlines the weighted average assumptions for options granted during the periods indicated:
Year Ended December 31,
Weighted Average:20212020
Expected term (years)5.85.8
Volatility75 %67 %
Risk-free rate1 %1 %
Dividend Yield0 %0 %
Summary of activity of service period-based stock options
The following table summarizes activity of service period-based stock options during the periods indicated:
(In thousands except per-share data and remaining contractual term)Number of OptionsWeighted AverageAggregate Intrinsic Value
Exercise PriceRemaining Contractual Term (Years)
Outstanding at December 31, 20199,509 $3.86 6.9$6,315 
Options Granted3,609 4.18 
Options Exercised(1,052)3.84 1,271 
Options Forfeited / Expired(1,233)3.98 
Outstanding at December 31, 202010,833 $3.96 6.8$10,472 
Options Granted1,724 8.67 
Options Exercised(2,146)4.34 13,301 
Options Forfeited / Expired(916)4.83 
Outstanding at December 31, 20219,495 $4.65 6.5$2,452 *
Exercisable at December 31, 20216,828 $3.77 5.5$2,256 *
*The aggregate intrinsic values in the table above are based on the Company’s stock price of $3.74, which is the closing price of the Company’s stock on the last day of business for the period ended December 31, 2021
Summary of activity of performance based stock options
The following table summarizes activity of performance based stock options during the periods indicated:
(In thousands except per-share data and remaining contractual term)Number of SharesWeighted AverageAggregate Intrinsic Value
Exercise PriceRemaining Contractual Term (Years)
Outstanding at December 31, 201942 $1.89 3.1$101 
Options Granted164 4.34 
Options Exercised(42)1.89 100 
Options Forfeited(83)4.34 
Outstanding at December 31, 202081 $4.34 3.1$37 
Options Granted— — 
Options Exercised(40)4.34 401 
Options Forfeited— — 
Outstanding and Exercisable at December 31, 202141 $4.34 2.1$— *
*The aggregate intrinsic values in the table above are based on the Company’s stock price of $3.74, which is the closing price of the Company’s stock on the last day of business for the period ended December 31, 2021
Summary of activity of market based stock options
The following table summarizes activity of market based stock options during the periods indicated:
(In thousands except per-share data and remaining contractual term)Number of SharesWeighted AverageAggregate Intrinsic Value
Exercise PriceRemaining Contractual Term (Years)
Outstanding at December 31, 20191,000 $4.24 7.8$70 
Options Granted— — 
Options Exercised— — — 
Options Forfeited— — 
Outstanding at December 31, 20201,000 $4.24 6.8$560 
Options Granted— — 
Options Exercised— — — 
Options Forfeited— — 
Outstanding and Exercisable at December 31, 20211,000 $4.24 5.8$— *
*The aggregate intrinsic values in the table above are based on the Company’s stock price of $3.74, which is the closing price of the Company’s stock on the last day of business for the period ended December 31, 2021.
Summary of activity of restricted stock units and restricted stock awards
The following table summarizes activity of restricted stock units during the periods indicated:
(In thousands except per share fair value)Number of UnitsWeighted Average Fair Value
Unvested shares at December 31, 2019— $— 
Granted— — 
Vested— — 
Forfeited— — 
Unvested shares at December 31, 2020— $— 
Granted135 10.29 
Vested— — 
Forfeited(20)10.77 
Unvested shares at December 31, 2021115 $10.21 
Expected to vest as of December 31, 2021115 $10.21 
The following table summarizes activity of restricted stock awards during the periods indicated:
(In thousands except per share fair value)Number of AwardsWeighted Average Fair Value
Unvested shares at December 31, 2019183 $3.25 
Granted— — 
Vested— — 
Forfeited— — 
Unvested shares at December 31, 2020183 $3.25 
Granted— — 
Vested— — 
Forfeited— — 
Unvested shares at December 31, 2021183 $3.25 
Expected to vest as of December 31, 2021183 $3.25 
Schedule of share-based compensation expenses
Share-based compensation expenses for the years ended December 31, 2021 and December 31, 2020 were as follows:
Year Ended December 31,
(In thousands)20212020
Share-based compensation expense
Cost of sales$204 $142 
Sales and marketing1,689 1,282 
Research and development877 551 
General and administrative3,425 4,961 
Total$6,195 $6,936