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Stock-Based Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Share-Based Payment Arrangement, Option, Activity | Stock options activity was as follows:
|  | Number of option shares |  | Weighted- average exercise price |  | Weighted-average remaining contractual term |  |
Outstanding, December 31, 2021 |  | 170,600 |  |  | 3.33 |  |  |  |  |
Granted |  | 178,950 |  |  | 2.68 |  |  |  |  |
Exercised |  | — |  |  | — |  |  |  |  |
Forfeited/canceled |  | (29,900) |  |  | 2.98 |  |  |  |  |
Outstanding, December 31, 2022 |  | 319,650 |  |  | $ | 3.00 |  |  | 6.15 |  |
Granted |  | 192,750 |  |  | 2.06 |  |  |  |  |
Exercised |  | — |  |  | $ | — |  |  |  |  |
Forfeited/canceled |  | (25,150) |  |  | $ | 2.55 |  |  |  |  |
Outstanding, December 31, 2023 |  | 487,250 |  |  | $ | 2.65 |  |  | 5.59 |  |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions | The assumptions used in the Black-Scholes valuation to determine the FV of stock options were as follows at December 31:
| 2023 |  | 2022
Expected term (in years) | 5.71 |  | 5.88
Expected volatility | 65.87 | % |  | 54.38 | %
Risk free interest rate | 3.45 | % |  | 2.29 | %
Expected dividend yield | — |  |  | — |
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity | Restricted stock activity was as follows:
| Number of shares |  | Weighted-average grant-date fair value
Nonvested, December 31, 2021 | 568,181 |  |  | 5.17 |
Granted | 65,225 |  |  | 2.59 |
Vested/released | (171,655) |  |  | 6.42 |
Forfeited/canceled | (66,000) |  |  | 4.67 |
Nonvested, December 31, 2022 | 395,751 |  |  | $ | 4.29 |
Granted | 34,250 |  |  | 1.93 |
Vested/released | (157,360) |  |  | 5.73 |
Forfeited/canceled | (12,075) |  |  | 3.63 |
Nonvested, December 31, 2023 | 260,566 |  |  | $ | 3.14 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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