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Regulatory Matters (Tables) | 12 Months Ended
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Dec. 31, 2021
Regulatory Matters |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  |  |  |  | ​ |  |  |  | To Be Well |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Capitalized Under |
​ | ​ | ​ | ​ | ​ | ​ | ​ | For Capital | ​ | Prompt Corrective |
​ | ​ | Actual | ​ | Adequacy Purposes | ​ | Action Provisions |
​ |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |
​ | ​ | (Dollars In Thousands) |
As of December 31, 2021 |  | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  | ​
Total capital |  | ​ |  |  |  |  | ​ |  |  |  |  | ​ |  |  |  | ​
Great Southern Bancorp, Inc. | ​ | $ | 745,641 |  | 16.3 | % | $ | 365,120 |  | 8.0 | % | ​ | N/A |  | N/A | ​
Great Southern Bank | ​ | $ | 701,215 |  | 15.4 | % | $ | 365,048 |  | 8.0 | % | $ | 456,310 |  | 10.0 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Tier I capital | ​ |  | ​ |  | ​ | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​
Great Southern Bancorp, Inc. | ​ | $ | 613,544 |  | 13.4 | % | $ | 273,840 |  | 6.0 | % |  | N/A |  | N/A | ​
Great Southern Bank | ​ | $ | 644,134 |  | 14.1 | % | $ | 273,786 |  | 6.0 | % | $ | 365,048 |  | 8.0 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Tier I leverage capital | ​ |  | ​ |  | ​ | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​
Great Southern Bancorp, Inc. | ​ | $ | 613,544 |  | 11.3 | % | $ | 217,264 |  | 4.0 | % |  | N/A |  | N/A | ​
Great Southern Bank | ​ | $ | 644,134 |  | 11.9 | % | $ | 217,209 |  | 4.0 | % | $ | 271,511 |  | 5.0 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Common equity Tier I capital | ​ |  | ​ |  | ​ | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​
Great Southern Bancorp, Inc. | ​ | $ | 588,544 |  | 12.9 | % | $ | 205,380 |  | 4.5 | % |  | N/A |  | N/A | ​
Great Southern Bank | ​ | $ | 644,134 |  | 14.1 | % | $ | 205,340 |  | 4.5 | % | $ | 296,602 |  | 6.5 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of December 31, 2020 | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​
Total capital | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​
Great Southern Bancorp, Inc. | ​ | $ | 800,388 |  | 17.2 | % | $ | 373,132 |  | 8.0 | % |  | N/A |  | N/A | ​
Great Southern Bank | ​ | $ | 694,047 |  | 14.9 | % | $ | 373,058 |  | 8.0 | % | $ | 466,322 |  | 10.0 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Tier I capital | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​
Great Southern Bancorp, Inc. | ​ | $ | 594,645 |  | 12.7 | % | $ | 279,849 |  | 6.0 | % |  | N/A |  | N/A | ​
Great Southern Bank | ​ | $ | 638,304 |  | 13.7 | % | $ | 279,793 |  | 6.0 | % | $ | 373,058 |  | 8.0 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Tier I leverage capital | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​
Great Southern Bancorp, Inc. | ​ | $ | 594,645 |  | 10.9 | % | $ | 217,223 |  | 4.0 | % |  | N/A |  | N/A | ​
Great Southern Bank | ​ | $ | 638,304 |  | 11.8 | % | $ | 217,170 |  | 4.0 | % | $ | 271,463 |  | 5.0 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Common equity Tier I capital | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​ |  | ​ |  |  | ​
Great Southern Bancorp, Inc. | ​ | $ | 569,645 |  | 12.2 | % | $ | 209,887 |  | 4.5 | % |  | N/A |  | N/A | ​
Great Southern Bank | ​ | $ | 638,304 |  | 13.7 | % | $ | 209,845 |  | 4.5 | % | $ | 303,109 |  | 6.5 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​

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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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