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Stock-Based Compensation Plan | 12 Months Ended
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Dec. 31, 2023
Stock-Based Compensation Plan |
Stock-Based Compensation Plan | NOTE 14. STOCK-BASED COMPENSATION PLAN Under the Company’s current 2015 Stock Incentive Plan (the “2015 Plan”), the Company’s Board of Directors (the “Board of Directors”) has flexibility to determine the type and amount of awards to be granted to eligible participants, who must be employees, directors, officers or consultants of the Company or its subsidiaries. The 2015 Plan allows for grants of incentive stock options, nonqualified stock options, restricted stock awards, stock appreciation rights, and restricted units. The aggregate number of shares of common stock that may be granted through awards under the 2015 Plan to any employee in any calendar year may not exceed 500 shares. The 2015 Plan will continue in effect until December 2025 unless terminated sooner. As of December 31, 2023, the number of shares authorized and reserved for issuance under the 2015 Plan is 10,187 shares, subject to automatic annual increase equal to 5% of the total number of shares of the Company’s outstanding common stock. Options Granted: During the year ended December 31, 2023, the Company issued stock options for an aggregate of 75 shares under the 2015 Plan to directors of the Company. All 75 options vest and become exercisable over a period of one year. All of the issued stock options expire ten years from the date of the grant. For computing the fair value of the stock-based awards, the fair value of each option grant has been estimated as of the date of grant using the Black-Scholes option-pricing model with the following assumptions:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2023 | ​ | 2022 | ​ | 2021
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Number of options | ​ | 75 | ​ | 430 | ​ | 10 | ​ | 500
Option vesting period | ​ | 1 Year | ​ | 1 - 3 Years | ​ | Immediate | ​ | 1 - 3 Years
Grant price (per share) | ​ | $7.91 | ​ | $18.67 - $27.65 | ​ | $21.83 | ​ | $15.15 - $24.43
Dividend yield | ​ | 1.26% | ​ | 0.36% - 0.54% | ​ | 0.46% | ​ | 0.41% - 0.66%
Expected volatility (a) | ​ | 47.8% | ​ | 38.6% - 40.9% | ​ | 39.4% | ​ | 39.1% - 43.6%
Risk-free interest rate | ​ | 3.69% | ​ | 1.46% - 3.38% | ​ | 1.66% | ​ | 0.50% - 1.02%
Expected life (years) (b) | ​ | 5.31 | ​ | 5.31 - 6.01 | ​ | 5.50 | ​ | 5.31 - 6.00
Weighted average fair value (per share) | ​ | $2.48 | ​ | $7.82 - $10.41 | ​ | $8.03 | ​ | $5.88 - $9.23
​
| (a) | Expected volatility is based upon the Company’s historical volatility.
| (b) | The expected term was determined based upon the underlying terms of the awards and the category and employment history of employee award recipient.
Using these assumptions, the fair value of the stock options granted during the years ended December 31, 2023, 2022, and 2021 was $186, $3,661, and $3,239, respectively, which will be amortized as stock-based compensation expense over the vesting period of the options. Market Condition Restricted Shares Granted: On March 14, 2023, the Company awarded the Executive Chairman 500 restricted shares under the 2015 Plan, of which 250 and 250 shares will vest if, on or before March 14, 2033, the Fair Market Value (as defined in the Plan) of the Company’s common stock shall have equaled or exceeded $15.00 and $18.00 per share for twenty consecutive trading days, respectively. For computing the fair value of the restricted shares with a market condition, the fair value of the restricted stock award grant has been estimated as of the date of grant using the Monte-Carlo pricing model with the assumptions below. On March 4, 2022, the Company issued and granted to the Executive Chairman and certain employees restricted stock awards of 700 restricted shares under the 2015 Plan, of which 700 restricted shares will vest if, on or before March 4, 2032, the Fair Market Value (as defined in the Plan) of the Company’s common stock shall have equaled or exceeded $50.00 per share for twenty consecutive trading days. For computing the fair value of the restricted shares with a market condition, the fair value of the restricted stock award grant has been estimated as of the date of grant using the Monte-Carlo pricing model with the assumptions below. On May 28, 2021, the Company issued and granted to the Executive Chairman a restricted stock award of 500 restricted shares under the 2015 Plan, of which 500 restricted shares will vest if, on or before May 28, 2024, the Fair Market Value (as defined in the Plan) of the Company’s common stock shall have equaled or exceeded $35.00 per share for twenty consecutive trading days. For computing the fair value of the restricted shares with a market condition, the fair value of the restricted stock award grant has been estimated as of the date of grant using the Monte-Carlo pricing model with the assumptions below. ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | March 14, 2023 |  | March 4, 2022 |  | May 28, 2021
​ | ​ | ​ | ​ | ​ | ​ | ​
Number issued | ​ | 500 | ​ | 700 | ​ | 500
Vesting period | ​ | $15.00 - $18.00 stock price target | ​ | $50.00 stock price target | ​ | $35.00 stock price target
Grant price (per share) | ​ | $9.60 | ​ | $21.83 | ​ | $23.69
Dividend yield | ​ | 1.04% | ​ | 0.46% | ​ | 0.42%
Expected volatility | ​ | 45.2% | ​ | 41.0% | ​ | 42.3%
Risk-free interest rate | ​ | 3.64% | ​ | 1.74% | ​ | 0.30%
Expected term (years) | ​ | 2.56 - 3.22 | ​ | 4.15 | ​ | 1.05
Weighted average fair value (per share) | ​ | $7.84 - $8.34 | ​ | $15.37 | ​ | $14.46
​ Using these assumptions, the fair value of the market condition restricted stock awards granted on March 14, 2023, March 4, 2022, and May 28, 2021 were approximately $4,046, $10,761, and $7,230, respectively. The total non-cash stock compensation expense for continuing operations related to stock options and restricted stock awards recorded by the Company was as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Year Ended December 31,
​ | 2023 | ​ | 2022 | ​ | 2021
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Restricted stock awards | $ | 2,540 | ​ | $ | 6,122 | ​ | $ | 5,241
Stock options | ​ | 2,601 | ​ | ​ | 5,076 | ​ | ​ | 4,236
Total | $ | 5,141 | ​ | $ | 11,198 | ​ | $ | 9,477
​ For the years ended December 31, 2023, 2022, and 2021, stock-based compensation costs were classified as selling, general and administrative expense. A summary of changes in outstanding options and restricted stock awards during the year ended December 31, 2023 is as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Options | ​ | Weighted Average Exercise Price | ​ | Aggregate Intrinsic Value | ​ | Restricted Stock Awards
Outstanding at December 31, 2022 | ​ | 4,246 | ​ | $ | 11.46 | ​ | $ | - | ​ | ​ | 1,546
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Granted | ​ | 75 | ​ | ​ | 2.48 | ​ | ​ | ​ | ​ | ​ | 500
Exercised or vested | ​ | (504) | ​ | ​ | 6.82 | ​ | ​ | ​ | ​ | ​ | (192)
Expired | ​ | (387) | ​ | ​ | 14.28 | ​ | ​ | ​ | ​ | ​ | -
Cancelled | ​ | - | ​ | ​ | - | ​ | ​ | ​ | ​ | ​ | -
Forfeited | ​ | (191) | ​ | ​ | - | ​ | ​ | ​ | ​ | ​ | (237)
Outstanding at December 31, 2023 | ​ | 3,239 | ​ | $ | 11.45 | ​ | $ | - | ​ | ​ | 1,617
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Options exercisable at December 31, 2023 | ​ | 3,087 | ​ | ​ | 11.06 | ​ | $ | - | ​ | ​ | ​
​ The following table summarizes the exercise price range, weighted average exercise price, and remaining contractual lives by significant ranges for options outstanding and exercisable as of December 31, 2023: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Remaining Life In Years | ​ | Weighted Average
Exercise Price Range | Outstanding | ​ | Exercisable | ​ | Outstanding | ​ | Exercisable | ​ | Exercise Price
$4.38 - $8.02 | ​ | 1,477 | ​ | ​ | 1,459 | ​ | ​ | 4.7 | ​ | ​ | 4.7 | ​ | $ | 6.44
$8.02 - $27.65 | ​ | 1,762 | ​ | ​ | 1,628 | ​ | ​ | 6.9 | ​ | ​ | 6.9 | ​ | $ | 15.20
​ | ​ | 3,239 | ​ | ​ | 3,087 | ​ | ​ | 6.3 | ​ | ​ | 6.3 | ​ | $ | 11.06
​ The intrinsic value of options exercised was $351, $4,381, and $3,425 during the years ended December 31, 2023, 2022, and 2021, respectively. The intrinsic value of restricted stock awards vested was $1,891, $3,336, and $1,623 during the years ended December 31, 2023, 2022, and 2021, respectively. Total fair value of options vested during the years ended December 31, 2023, 2022, and 2021 was $3,461, $5,361, and $3,227, respectively. Total fair value of restricted stock awards vested during the years ended December 31, 2023, 2022, and 2021 was $1,438, $1,157, and $991, respectively. The fair value of unvested restricted stock awards is determined based on the market price of our shares of common stock on the grant date or using the Monte-Carlo pricing model. As of December 31, 2023, there were 153 unvested stock options and unrecognized compensation cost of $1,053 related to unvested stock options, as well as 1,617 unvested restricted stock awards and unrecognized compensation cost of $7,209 related to unvested restricted stock awards. Unrecognized compensation cost of unvested stock options and restricted stock awards are expected to be recognized over the weighted average period of 1.0 years and 2.2 years, respectively.

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