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STOCK COMPENSATION PLAN (Tables) | 12 Months Ended
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Dec. 31, 2025
STOCK COMPENSATION PLAN. |
Schedule of changes in the non-vested restricted stock awards | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year ended
​ | ​ | December 31, 2025 | ​ | December 31, 2024 | ​ | December 31, 2023
​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​ | Weighted | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | Average | ​ | ​ | ​ | Average | ​ | ​ | ​ | Average
​ | ​ | Number | ​ | Grant Date | ​ | Number | ​ | Grant Date | ​ | Number | ​ | Grant Date
​ | ​ | of | ​ | Fair Value | ​ | of | ​ | Fair Value | ​ | of | ​ | Fair Value
​ | ​ ​ ​ | Shares | ​ ​ ​ ​ | per Share | ​ ​ ​ | Shares | ​ ​ ​ ​ | per Share | ​ ​ | Shares | ​ ​ ​ ​ | per Share
Outstanding, beginning of period | ​ | 277,095 | ​ | $ | 50.59 | ​ | 233,852 | ​ | $ | 63.98 | ​ | 129,562 | ​ | $ | 86.01
Granted | ​ | 160,859 | ​ | ​ | 61.10 | ​ | 195,969 | ​ | ​ | 42.28 | ​ | 198,498 | ​ | ​ | 56.04
Forfeited | ​ | (26,122) | ​ | ​ | 52.01 | ​ | (19,243) | ​ | ​ | 51.37 | ​ | (29,218) | ​ | ​ | 62.53
Vested | ​ | (150,357) | ​ | ​ | 53.44 | ​ | (133,483) | ​ | ​ | 61.74 | ​ | (64,990) | ​ | ​ | 84.28
Outstanding at end of period | ​ | 261,475 | ​ | $ | 55.27 | ​ | 277,095 | ​ | $ | 50.59 | ​ | 233,852 | ​ | $ | 63.98

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Subparagraph (c) -Paragraph 2 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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