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Note 24: Regulatory Matters: Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Total risk-based capital | Great Southern Bancorp, Inc. |  |
Actual Capital Amount | $ 597,177 | $ 556,106
Actual Capital Ratio | 14.10% | 13.60%
Capital Required for Capital Adequacy | $ 339,649 | $ 327,610
Capital Required for Capital Adequacy to Risk Weighted Assets | 8.00% | 8.00%
Total risk-based capital | Great Southern Bank |  |
Actual Capital Amount | $ 558,668 | $ 520,989
Actual Capital Ratio | 13.20% | 12.70%
Capital Required for Capital Adequacy | $ 339,575 | $ 327,505
Capital Required for Capital Adequacy to Risk Weighted Assets | 8.00% | 8.00%
Capital Required to be Well Capitalized | $ 424,468 | $ 409,382
Capital Required to be Well Capitalized to Risk Weighted Assets | 10.00% | 10.00%
Tier I risk-based capital | Great Southern Bancorp, Inc. |  |
Actual Capital Amount | $ 485,685 | $ 443,706
Actual Capital Ratio | 11.40% | 10.80%
Capital Required for Capital Adequacy | $ 254,737 | $ 245,707
Capital Required for Capital Adequacy to Risk Weighted Assets | 6.00% | 6.00%
Tier I risk-based capital | Great Southern Bank |  |
Actual Capital Amount | $ 522,176 | $ 483,589
Actual Capital Ratio | 12.30% | 11.80%
Capital Required for Capital Adequacy | $ 254,681 | $ 245,629
Capital Required for Capital Adequacy to Risk Weighted Assets | 6.00% | 6.00%
Capital Required to be Well Capitalized | $ 339,575 | $ 327,505
Capital Required to be Well Capitalized to Risk Weighted Assets | 8.00% | 8.00%
Tier I leverage capital | Great Southern Bancorp, Inc. |  |
Actual Capital Amount | $ 485,685 | $ 443,706
Actual Capital Ratio | 10.90% | 9.90%
Capital Required for Capital Adequacy | $ 177,881 | $ 178,693
Capital Required for Capital Adequacy to Risk Weighted Assets | 4.00% | 4.00%
Tier I leverage capital | Great Southern Bank |  |
Actual Capital Amount | $ 522,176 | $ 483,589
Actual Capital Ratio | 11.70% | 10.80%
Capital Required for Capital Adequacy | $ 177,844 | $ 178,643
Capital Required for Capital Adequacy to Risk Weighted Assets | 4.00% | 4.00%
Capital Required to be Well Capitalized | $ 222,305 | $ 223,304
Capital Required to be Well Capitalized to Risk Weighted Assets | 5.00% | 5.00%
Capital Equity Tier I Capital | Great Southern Bancorp, Inc. |  |
Actual Capital Amount | $ 460,661 | $ 418,687
Actual Capital Ratio | 10.90% | 10.20%
Capital Required for Capital Adequacy | $ 191,053 | $ 184,280
Capital Required for Capital Adequacy to Risk Weighted Assets | 4.50% | 4.50%
Capital Equity Tier I Capital | Great Southern Bank |  |
Actual Capital Amount | $ 522,152 | $ 483,569
Actual Capital Ratio | 12.30% | 11.80%
Capital Required for Capital Adequacy | $ 191,011 | $ 184,222
Capital Required for Capital Adequacy to Risk Weighted Assets | 4.50% | 4.50%
Capital Required to be Well Capitalized | $ 275,904 | $ 266,098
Capital Required to be Well Capitalized to Risk Weighted Assets | 6.50% | 6.50%

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- Definition The minimum amount of Total Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84167132&loc=d3e65071-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826 + Details
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- Definition The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84167132&loc=d3e65071-112826 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958570-112826 + Details
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