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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]  
Summary of Stock Option Activity
A summary of stock option activity under the 2018 Plan and 2006 Plan during the nine months ended September 30, 2022:
OptionsShares Weighted-
Average
Exercise
Price
Weighted-
Average
Remaining
Contractual
Term (Years)
Aggregate
Intrinsic Value
(dollars in thousands, except per share amounts; unaudited)
Outstanding at December 31, 2021
694,519$7.79 4.0$29,744 
Granted— 
Exercised(41,725)$7.46 
Forfeited or expired(8,460)9.92 
Outstanding at September 30, 2022
644,334$7.79 3.2$20,589 
Vested or expected to vest at September 30, 2022
644,334$7.79 3.2$20,589 
Exercisable at September 30, 2022
397,553$6.77 2.2$13,108 
Summary of Nonvested RSUs
A summary of the Company’s nonvested RSUs at September 30, 2022 and changes during the nine month period is presented below:
Nonvested shares - RSUsShares Weighted-
Average
Grant Date
Fair
Value
Total or Aggregate
Intrinsic Value
(dollars in thousands, except per share amounts; unaudited)
Nonvested shares at December 31, 2021
269,844$21.70 $7,803 
Granted143,702$39.61 
Forfeited(5,716)$24.66 
Vested(26,137)$19.79 
Nonvested shares at September 30, 2022
381,693$28.52 $4,268 
A summary of the Company’s nonvested shares at September 30, 2022 and changes during the nine-month period is presented below:
Nonvested shares - RSAsShares Weighted-
Average
Grant Date
Fair
Value
Total or Aggregate
Intrinsic Value
(dollars in thousands, except per share amounts; unaudited)
Nonvested shares at December 31, 2021
10,203$23.78 $274 
Granted10,396$37.30 
Forfeited$— 
Vested(7,203)$26.27 
Nonvested shares at September 30, 2022
13,396$32.94 $91