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STOCK-BASED COMPENSATION (Tables) | 6 Months Ended
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Jun. 30, 2021
STOCK-BASED COMPENSATION |
Activity Related to Stock Options | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ |  | ​ | ​ |  | Weighted- |  | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Average | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted- | ​ | Remaining | ​ | Aggregate
​ | ​ | Number of | ​ | Average Exercise | ​ | Contractual | ​ | Intrinsic
​ |  | Options |  | Price |  | Years |  | Value
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Options outstanding at January 1, 2021 | ​ | 28,842 | ​ | $ | 15.05 | ​ | ​ | ​ | ​ | ​
Options outstanding at January 1, 2021 as adjusted for conversion | ​ | 18,685 | ​ | ​ | 23.23 | ​ | ​ | ​ | ​ | ​
Options acquired (1) | ​ | 180,020 | ​ | ​ | 35.39 | ​ | ​ | ​ | ​ | ​
Options exercised |  | 17,102 | ​ |  | 23.40 |  |  | ​ |  |
Options outstanding at June 30, 2021 |  | 181,603 | ​ | $ | 35.26 |  | 8.1 | ​ | $ | 19
Options vested and exercisable at June 30, 2021 |  | 181,603 | ​ | $ | 35.26 |  | 8.1 | ​ | $ | 19
| (1) | Options acquired in the Merger expire one year from the date of the Effective Date of the Merger.
Information Related to Stock Option Plan | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended
​ | ​ | June 30, | ​ | June 30,
(In thousands) |  | 2021 |  | 2020 | ​ | 2021 |  | 2020
Cash received for option exercise cost | ​ | $ | 28 | ​ | $ | 38 | ​ | $ | 396 | ​ | $ | 38
Income tax benefit recognized on stock option exercises | ​ |  | — | ​ |  | — | ​ |  | — | ​ |  | —
Intrinsic value of options exercised | ​ |  | 11 | ​ |  | 8 | ​ |  | 77 | ​ |  | 8
Activity Related to Restricted Stock Awards | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ |  | Weighted-
​ | ​ | ​ | ​ | Average
​ | ​ | Number of | ​ | Grant-Date
​ |  | Shares |  | Fair Value
​ | ​ | ​ | ​ | ​ | ​
Unvested allocated shares outstanding at January 1, 2021 | ​ | — | ​ | $ | —
Shares acquired in the merger | ​ | 89,043 | ​ | ​ | 31.00
Shares granted |  | 454,067 | ​ |  | 25.77
Shares vested | ​ | (98,881) | ​ | ​ | 30.44
Shares forfeited |  | (30,489) | ​ |  | 25.62
Unvested allocated shares at June 30, 2021 |  | 413,740 | ​ | $ | 25.79
Information Related to Restricted Stock Award Plan | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Six Months Ended
​ | ​ | June 30, | ​ | June 30,
(Dollars in thousands) |  | 2021 |  | 2020 | ​ | 2021 |  | 2020
Compensation expense recognized | ​ | $ | 1,514 | ​ | $ | 406 | ​ | $ | 2,350 | ​ | $ | 867
Income tax benefit recognized on vesting of RSA | ​ |  | (86) | ​ |  | (61) | ​ |  | (86) | ​ |  | (57)
Weighted average remaining years for which compensation expense is to be recognized | ​ |  | 2.8 | ​ |  | — | ​ |  | 2.8 | ​ |  | —

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