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Options and Awards (Tables)
 6 Months Ended
Jun. 30, 2022
Share-Based Payment Arrangement [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions The Company used the following assumptions for stock options granted during the three months ended June 30, 2022 and 2021:
Grant YearOptions GrantedWeighted Average Risk-Free RateExpected LifeWeighted Average VolatilityWeighted Average Dividend Yield
20221542.7%6.1 years42.1%0.3%
20212091.0%6.3 years42.3%0.3%
The Company used the following assumptions for stock options granted during the six months ended June 30, 2022 and 2021:
Grant YearOptions GrantedWeighted Average Risk-Free RateExpected LifeWeighted Average VolatilityWeighted Average Dividend Yield
20223182.3%6.1 years42.2%0.3%
20213450.9%6.3 years42.2%0.2%
Schedule of Weighted Average Grant Date Fair Value and Exercise Price of Options
For the six months ended June 30, 2022 and 2021, the following represents the exercise price and fair value displayed at grant date for stock option grants:
Grant YearGrantedWeighted Average Exercise PriceWeighted Average Fair Value of Options
2022318$80.18 $34.29 
2021345$82.77 $33.86 
The weighted average exercise price equaled the weighted average fair value of common stock on the grant date for all options granted during the periods ended June 30, 2022 and 2021 and therefore, the intrinsic value was $0 at the date of grant.
Schedule of Common Stock Outstanding Roll Forward
The following table represents the employee stock option activity during the six months ended June 30, 2022:
Number of Options OutstandingWeighted Average
Exercise Price		Number of
Options Vested		Weighted Average Exercise Price of Options Vested
January 1, 20224,038 $36.60 2,183 $21.02 
Granted318 80.18 — — 
Forfeited(68)57.40 — — 
Exercised(370)16.40 — — 
June 30, 20223,918 $41.69 2,151 $25.53 
Share-based Payment Arrangement, Option, Exercise Price Range
The following summary information reflects stock options outstanding, vested and related details as of June 30, 2022:
Stock Options OutstandingStock Options Vested
 
Number OutstandingBlack-Scholes Fair ValueRemaining Contractual Life (Years)Vested and Exercisable
Year of GrantExercise Price
2012$5.56-$6.7510 $32 010 
20136.76-9.74125 476 1125 
20148.94-16.05457 2,204 2457 
201518.20-21.39246 1,910 3246 
201615.93-16.86233 1,377 4233 
201715.80-19.41267 1,583 5236 
201822.49-32.71496 4,806 6326 
201941.07-45.76615 9,651 7292 
202044.84-59.49569 11,205 8162 
202173.47-83.64586 19,222 964 
2022$79.79$80.60314 10,782 10— 
TOTAL 3,918 $63,248  2,151 
Schedule of Aggregate Intrinsic Value of Options
The aggregate intrinsic value of options outstanding, vested and expected to vest as of June 30, 2022 and December 31, 2021 is as follows:
OptionsJune 30, 2022December 31, 2021
Outstanding$130,564 $191,242 
Vested103,713 137,382 
Expected to vest24,561 48,548 
Schedule of Nonvested Restricted Stock Units Activity
A summary of the status of the Company's non-vested restricted stock awards as of June 30, 2022 and changes during the six months ended June 30, 2022 is presented below:
Non-Vested Restricted AwardsWeighted Average Grant Date Fair Value
Non-vested at January 1, 2022549 $52.16 
Granted158 77.06 
Vested(199)54.74 
Forfeited(16)55.86 
Non-vested at June 30, 2022492 $59.01 
Schedule of Stock-Based Compensation Expense
Stock-based compensation expense recognized for the Company's equity incentive plans and long-term incentive plan for the three and six months ended June 30, 2022 and 2021 was as follows:

Three Months Ended June 30,Six Months Ended June 30,
 2022202120222021
Stock-based compensation expense related to stock options$2,786 $2,026 $5,306 $3,759 
Stock-based compensation expense related to restricted stock awards2,456 2,076 4,758 3,914 
Stock-based compensation expense related to stock options and restricted stock awards to non-employee directors374 531 719 1,014 
TOTAL$5,616 $4,633 $10,783 $8,687