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CAPITAL REQUIREMENTS AND RESTRICTIONS ON RETAINED EARNINGS (Tables) | 12 Months Ended
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Dec. 31, 2020
Capital Requirements and Restrictions On Retained Earnings [Abstract] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations | There have been no conditions or events since that notification that management believes have changed the Company and the Bank’s category. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Minimum Required to |
​ | ​ | ​ | ​ | ​ | ​ | ​ | Minimum Required | ​ | For Capital Adequacy | ​ | Be Well Capitalized |
​ | ​ | ​ | ​ | ​ | ​ | ​ | For Capital | ​ | Purposes Plus Capital | ​ | Under Prompt Corrective |
​ | ​ | Actual | ​ | Adequacy Purposes | ​ | Conservation Buffer | ​ | Action Regulations |
(dollars in thousands) |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |
As of December 31, 2020: |  | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  | ​
Total Capital (to Risk Weighted Assets) |  | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  | ​
Consolidated | ​ | $ | 682,778 |  | 14.65 | % | $ | 372,921 |  | 8.00 | % | $ | 489,459 |  | N/A |  | ​ | N/A |  | N/A | ​
Bank | ​ | $ | 678,034 |  | 14.56 | % | $ | 372,560 |  | 8.00 | % | $ | 488,985 |  | 10.50 | % | $ | 465,700 |  | 10.00 | %
Tier I Capital (to Risk Weighted Assets) | ​ |  | ​ |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​
Consolidated | ​ | $ | 624,381 |  | 13.39 | % | $ | 279,691 |  | 6.00 | % | $ | 396,229 |  | N/A | ​ |  | N/A |  | N/A | ​
Bank | ​ | $ | 619,693 |  | 13.31 | % | $ | 279,420 |  | 6.00 | % | $ | 395,845 |  | 8.50 | % | $ | 372,560 |  | 8.00 | %
Common Equity Tier 1 (CET1) | ​ |  |  |  | ​ | ​ |  | ​ |  |  | ​ |  |  |  |  | ​ |  |  |  | ​ | ​
Consolidated | ​ | $ | 624,381 |  | 13.39 | % | $ | 209,768 |  | 4.50 | % | $ | 326,306 |  | N/A | ​ |  | N/A |  | N/A | ​
Bank | ​ | $ | 619,693 |  | 13.31 | % | $ | 209,565 |  | 4.50 | % | $ | 325,990 |  | 7.00 | % | $ | 302,705 |  | 6.50 | %
Tier I Capital (to Average Assets) | ​ |  | ​ |  | ​ | ​ |  | ​ |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​
Consolidated | ​ | $ | 624,381 |  | 10.93 | % | $ | 228,406 |  | 4.00 | % | $ | 228,406 |  | N/A | ​ |  | N/A |  | N/A | ​
Bank | ​ | $ | 619,693 |  | 10.88 | % | $ | 227,900 |  | 4.00 | % | $ | 227,900 |  | 4.00 | % | $ | 284,875 |  | 5.00 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of December 31, 2019: | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​
Total Capital (to Risk Weighted Assets) | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​
Consolidated | ​ | $ | 631,723 |  | 14.36 | % | $ | 351,894 |  | 8.00 | % | $ | 461,862 |  | N/A |  | ​ | N/A |  | N/A | ​
Bank | ​ | $ | 616,386 |  | 14.04 | % | $ | 351,227 |  | 8.00 | % | $ | 460,985 |  | 10.50 | % | $ | 439,034 |  | 10.00 | %
Tier I Capital (to Risk Weighted Assets) | ​ |  |  |  | ​ | ​ |  | ​ |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​
Consolidated | ​ | $ | 580,982 |  | 13.21 | % | $ | 263,921 |  | 6.00 | % | $ | 373,887 |  | N/A | ​ |  | N/A |  | N/A | ​
Bank | ​ | $ | 565,645 |  | 12.88 | % | $ | 263,420 |  | 6.00 | % | $ | 373,179 |  | 8.50 | % | $ | 351,227 |  | 8.00 | %
Common Equity Tier 1 (CET1) | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​
Consolidated | ​ | $ | 580,982 |  | 13.21 | % | $ | 197,941 |  | 4.50 | % | $ | 307,908 |  | N/A | ​ |  | N/A |  | N/A | ​
Bank | ​ | $ | 565,645 |  | 12.88 | % | $ | 197,565 |  | 4.50 | % | $ | 307,324 |  | 7.00 | % | $ | 285,372 |  | 6.50 | %
Tier I Capital (to Average Assets) | ​ |  |  |  | ​ | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  |  | ​
Consolidated | ​ | $ | 580,982 |  | 11.67 | % | $ | 199,099 |  | 4.00 | % | $ | 199,099 |  | N/A | ​ |  | N/A |  | N/A | ​
Bank | ​ | $ | 565,645 |  | 11.43 | % | $ | 197,923 |  | 4.00 | % | $ | 197,923 |  | 4.00 | % | $ | 247,404 |  | 5.00 | %

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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