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Stock-Based Compensation | 9 Months Ended
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Sep. 30, 2022
Share-Based Payment Arrangement [Abstract] |
Stock-Based Compensation | Stock-Based Compensation The Company grants stock-based awards under its 2014 Incentive Stock Plan (the “2014 Plan”). The shares issued as a result of stock-based compensation transactions generally have been funded with the issuance of new shares of the Company’s common stock. The Company may grant the following types of incentive awards under the 2014 Plan: (i) non-qualified stock options; (ii) incentive stock options; (iii) stock appreciation rights; (iv) restricted stock; and (v) restricted stock units. Each award granted under the 2014 Plan is subject to an award agreement that incorporates, as applicable, the exercise price, the term of the award, the periods of restriction, the number of shares to which the award pertains, and such other terms and conditions as the plan committee determines. Awards granted under the 2014 Plan are classified as equity awards, which are recorded in stockholders’ equity in the Company’s consolidated balance sheets. Through December 31, 2021, the Company has granted under the 2014 Plan (i) non-qualified stock options; (ii) incentive stock options; and (iii) restricted stocks. There were no stock appreciation rights and restricted stock units granted under the 2014 Plan as of September 30, 2022. Stock Options The Company’s closing price on the date of grant is the basis of fair value of its common stock used in determining the value of share-based awards. To the extent the value of the Company’s share-based awards involves a measure of volatility, the Company uses available historical volatility of the Company’s common stock over a period of time corresponding to the expected stock option term. The Company uses the simplified method to calculate the expected term of stock option grants to employees as the Company does not have sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term of stock options granted to employees. Accordingly, the expected life of the options granted is based on the average of the vesting term, which is generally four years and the contractual term, which is generally ten years. The Company will continue to evaluate the appropriateness of utilizing such method. The risk-free interest rate is based on United States Treasury yields in effect at the date of grant for periods corresponding to the expected stock option term. Forfeitures are estimated based on historical and forecasted turnover, which is approximately 5%. The Company did not grant options during the three and nine months ended September 30, 2022. The Company has computed the fair value of all options granted using the Black-Scholes-Merton model during the nine months ended September 30, 2021 using the following assumptions:
| Nine Months Ended September 30,
| 2021
Expected volatility | 56.6% to 56.9%
Expected dividends | None
Expected term (years) | 7
Risk-free rate | 0.97% to 1.15%
Forfeiture rate | 5%
The information below summarizes the stock options activity for the nine months ended September 30, 2022:
| Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life (Years)
Outstanding at December 31, 2021 | 595,089 |  |  | $ | 9.72 |  |  | 5.9
Granted | — |  |  | — |  |  |
Exercised | (41,865) |  |  | 8.65 |  |  |
Forfeited | (11,538) |  |  | 24.40 |  |  |
Expired | (2,148) |  |  | 23.34 |  |  |
Outstanding at September 30, 2022 | 539,538 |  |  | $ | 9.43 |  |  | 5.0
Exercisable at September 30, 2022 | 447,457 |  |  | $ | 6.45 |  |  | 4.5
For the three months ended September 30, 2022 and 2021, stock-based compensation expense for stock options was $113,324 and $179,111, respectively. For the nine months ended September 30, 2022 and 2021, stock-based compensation expense for stock options was $420,680 and $506,159, respectively. Restricted Stock Restricted stocks granted to employees generally vest in four equal annual installments. Restricted stocks granted to non-employee directors typically vest in full one year after the date of grant. The information below summarizes the restricted stock activity for the nine months ended September 30, 2022:
Restricted Stock Awards |  | Shares |  | Weighted Average Grant-Date Fair Value per Award
Non-vested at December 31, 2021 |  | 27,720 |  |  | $ | 28.51 |
Granted |  | 68,125 |  |  | 29.47 |
Vested |  | (15,055) |  |  | 30.64 |
Forfeited |  | (5,586) |  |  | 28.92 |
Non-vested at September 30, 2022 |  | 75,204 |  |  | $ | 28.92 |
For the three months ended September 30, 2022 and 2021, stock-based compensation expense for restricted stock was $192,491 and $117,739, respectively. For the nine months ended September 30, 2022 and 2021, stock-based compensation expense for restricted stock was $548,882 and $320,749, respectively.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI https://asc.fasb.org/topic&trid=2208762 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496171-112644 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496171-112644 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496189-112644 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496189-112644 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496171-112644 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496189-112644 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 16 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496180-112644 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 50 -Paragraph 6 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126731327&loc=SL126733271-114008 + Details
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