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STOCK COMPENSATION PLANS (Tables) | 12 Months Ended
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Dec. 31, 2023
STOCK COMPENSATION PLANS |
Schedule of company's stock incentive plan | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | YEAR ENDED DECEMBER 31,
​ | ​ | 2023 | ​ | 2022 | ​ | 2021
​ |  | ​ |  | WEIGHTED |  | ​ |  | WEIGHTED |  | ​ |  | WEIGHTED
​ | ​ | ​ | ​ | AVERAGE | ​ | ​ | ​ | AVERAGE | ​ | ​ | ​ | AVERAGE
​ | ​ | SHARES | ​ | EXERCISE PRICE | ​ | SHARES | ​ | EXERCISE PRICE | ​ | SHARES | ​ | EXERCISE PRICE
Outstanding at beginning of year | ​ | 323,786 | ​ | $ | 3.52 | ​ | 369,047 | ​ | $ | 3.47 | ​ | 230,913 | ​ | $ | 3.14
Granted |  | — | ​ | ​ | — | ​ | — | ​ | ​ | — |  | 160,000 | ​ | ​ | 3.84
Exercised |  | (29,653) | ​ | ​ | 3.19 | ​ | (36,117) | ​ | ​ | 2.96 |  | (21,356) | ​ | ​ | 2.68
Forfeited |  | (49,133) | ​ | ​ | 3.17 | ​ | (9,144) | ​ | ​ | 3.62 |  | (510) | ​ | ​ | 3.23
Outstanding at end of year |  | 245,000 | ​ | ​ | 3.64 | ​ | 323,786 | ​ | ​ | 3.52 |  | 369,047 | ​ | ​ | 3.47
Exercisable at end of year |  | 200,002 | ​ | ​ | 3.59 | ​ | 223,784 | ​ | ​ | 3.38 |  | 206,713 | ​ | ​ | 3.18
Weighted average fair value of options granted in current year |  |  | ​ | $ | — | ​ |  | ​ | $ | — |  |  | ​ | $ | 1.78
Schedule of fair value assumptions of each option grant | ​
​ | ​ | ​ | ​
​ | ​ | YEAR ENDED DECEMBER 31, | ​
PRICING MODEL ASSUMPTION RANGES |  | 2021 |
Risk-free interest rate |  | 1.27 - 1.42 | %
Expected lives in years |  | 10 |
Expected volatility |  | 40.38 - 45.03 | %
Expected dividend rate |  | 2.60 - 2.61 | %

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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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