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Note 12 - Regulatory Capital Matters - Summary of Regulatory Capital Information (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
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Colony Bank [Member] |  |
Capital | $ 130,022 | $ 126,939
Capital to Risk-Weighted Assets | 16.45% | 15.99%
Capital Required for Capital Adequacy | $ 63,223 | $ 63,500
Capital Required for Capital Adequacy to Risk-Weighted Assets | 8.00% | 8.00%
Capital Required to be Well Capitalized | $ 79,029 | $ 79,375
Capital Requited to be Well Capitalized to Risk-Weighted Assets | 10.00% | 10.00%
Tier I Risk Based Capital | $ 120,819 | $ 118,335
Tier I Risk Based Capital to Risk-Weighted Assets | 15.29% | 14.91%
Tier I Risk Based Capital Required for Capital Adequacy | $ 47,417 | $ 47,625
Tier I Risk Based Capital Required for Capital Adequacy to Risk-Weighted Assets | 6.00% | 6.00%
Tier I Risk Based Capital Required to be Well Capitalized | $ 63,223 | $ 63,500
Tier I Risk Based Capital Required to be Well Capitalized to Risk-Weighted Assets | 8.00% | 8.00%
Common Equity Tier I Risk Based Capital | $ 120,819 | $ 118,335
Common Equity Tier I Risk Based Capital to Risk-Weighted Assets | 15.29% | 14.91%
Common Equity Tier I Risk Based Capital Required for Capital Adequacy | $ 35,563 | $ 35,719
Common Equity Tier I Risk Based Capital Required for Capital Adequacy to Risk-Weighted Assets | 4.50% | 4.50%
Common Equity Tier I Risk Based Capital Required to Be Well Capitalized | $ 51,369 | $ 51,594
Common Equity Tier I Risk Based Capital Required to Be Well Capitalized to Risk-Weighted Assets | 6.50% | 6.50%
Tier I Leverage Capital | $ 120,819 | $ 118,335
Tier I Leverage Capital to Average Assets | 10.51% | 10.27%
Tier I Leverage Capital Required for Capital Adequacy | $ 46,002 | $ 46,074
Tier I Leverage Capital Required for Capital Adequacy to Average Assets | 4.00% | 4.00%
Tier I Leverage Capital Required to Be Well Capitalized | $ 57,502 | $ 57,592
Tier I Leverage Capital Required to Be Well Capitalized to Average Assets | 5.00% | 5.00%
Capital | $ 134,175 | $ 131,948
Capital to Risk-Weighted Assets | 16.95% | 16.60%
Capital Required for Capital Adequacy | $ 63,312 | $ 63,602
Capital Required for Capital Adequacy to Risk-Weighted Assets | 8.00% | 8.00%
Tier I Risk Based Capital | $ 124,972 | $ 123,344
Tier I Risk Based Capital to Risk-Weighted Assets | 15.79% | 15.51%
Tier I Risk Based Capital Required for Capital Adequacy | $ 47,484 | $ 47,702
Tier I Risk Based Capital Required for Capital Adequacy to Risk-Weighted Assets | 6.00% | 6.00%
Common Equity Tier I Risk Based Capital | $ 87,112 | $ 81,823
Common Equity Tier I Risk Based Capital to Risk-Weighted Assets | 11.01% | 10.29%
Common Equity Tier I Risk Based Capital Required for Capital Adequacy | $ 35,613 | $ 35,776
Common Equity Tier I Risk Based Capital Required for Capital Adequacy to Risk-Weighted Assets | 4.50% | 4.50%
Tier I Leverage Capital | $ 124,972 | $ 123,344
Tier I Leverage Capital to Average Assets | 10.85% | 10.69%
Tier I Leverage Capital Required for Capital Adequacy | $ 46,077 | $ 46,149
Tier I Leverage Capital Required for Capital Adequacy to Average Assets | 4.00% | 4.00%

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- Definition The amount of total capital as defined in the regulations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998 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)(1) -URI http://asc.fasb.org/extlink&oid=35709795&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 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47080-110998 + 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=35709795&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=35709795&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=35709795&loc=SL5958570-112826 + Details
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- Definition The amount of Total Capital required to be categorized as well as capitalized 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 -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 + Details
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- Definition The amount of Tier 1 Leverage Capital required to be categorized as well capitalized 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=35709795&loc=SL5958568-112826 + Details
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- Definition The minimum amount of Tier 1 Risk Based 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=35709795&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=35709795&loc=SL5958568-112826 + Details
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- Definition The minimum Tier One Capital Ratio (Tier one 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=35709795&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 1B -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958570-112826 Reference 3: 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=35709795&loc=d3e65071-112826 + Details
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- Definition The amount of Tier 1 Risk Based Capital required to be categorized as well capitalized 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=35709795&loc=SL5958568-112826 + Details
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- Definition The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" 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=35709795&loc=SL5958568-112826 + Details
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