Note 12 - Regulatory Capital Matters (Details) - Regulatory Capital Information - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Total Capital to Risk-Weighted Assets
Capital	$ 138,607	$ 136,022
Capital to Risk-Weighted Assets	17.49%	17.95%
Capital Required for Capital Adequacy	$ 63,388	$ 60,639
Capital Required for Capital Adequacy to Risk-Weighted Assets	8.00%	8.00%
Capital Required to be Well Capitalized
Capital Requited to be Well Capitalized to Risk-Weighted Assets
Tier I Capital to Risk-Weighted Assets
Tier I Risk Based Capital	$ 130,127	$ 127,220
Tier I Risk Based Capital to Risk-Weighted Assets	16.42%	16.78%
Tier I Risk Based Capital Required for Capital Adequacy	$ 47,541	$ 30,320
Tier I Risk Based Capital Required for Capital Adequacy to Risk-Weighted Assets	6.00%	4.00%
Tier I Risk Based Capital Required to be Well Capitalized
Tier I Risk Based Capital Required to be Well Capitalized to Risk-Weighted Assets
Common Equity Tier I Capital to Risk-Weighted Assets
Common Equity Tier I Risk Based Capital	$ 78,627
Common Equity Tier I Risk Based Capital to Risk-Weighted Assets	9.92%
Common Equity Tier I Risk Based Capital Required for Capital Adequacy	$ 35,656
Common Equity Tier I Risk Based Capital Required for Capital Adequacy to Risk-Weighted Assets	4.50%
Common Equity Tier I Risk Based Capital Required to Be Well Capitalized
Common Equity Tier I Risk Based Capital Required to Be Well Capitalized to Risk-Weighted Assets
Tier I Capital to Average Assets
Tier I Leverage Capital	$ 130,127	$ 127,220
Tier I Leverage Capital to Average Assets	11.28%	11.18%
Tier I Leverage Capital Required for Capital Adequacy	$ 46,149	$ 45,509
Tier I Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Tier I Leverage Capital Required to Be Well Capitalized
Tier I Leverage Capital Required to Be Well Capitalized to Average Assets
Colony Bank [Member]
Total Capital to Risk-Weighted Assets
Capital	$ 132,118	$ 127,833
Capital to Risk-Weighted Assets	16.70%	16.89%
Capital Required for Capital Adequacy	$ 63,294	$ 60,542
Capital Required for Capital Adequacy to Risk-Weighted Assets	8.00%	8.00%
Capital Required to be Well Capitalized	$ 79,117	$ 75,678
Capital Requited to be Well Capitalized to Risk-Weighted Assets	10.00%	10.00%
Tier I Capital to Risk-Weighted Assets
Tier I Risk Based Capital	$ 123,638	$ 119,031
Tier I Risk Based Capital to Risk-Weighted Assets	15.63%	15.73%
Tier I Risk Based Capital Required for Capital Adequacy	$ 47,470	$ 30,271
Tier I Risk Based Capital Required for Capital Adequacy to Risk-Weighted Assets	6.00%	4.00%
Tier I Risk Based Capital Required to be Well Capitalized	$ 63,294	$ 45,407
Tier I Risk Based Capital Required to be Well Capitalized to Risk-Weighted Assets	8.00%	6.00%
Common Equity Tier I Capital to Risk-Weighted Assets
Common Equity Tier I Risk Based Capital	$ 123,638
Common Equity Tier I Risk Based Capital to Risk-Weighted Assets	15.63%
Common Equity Tier I Risk Based Capital Required for Capital Adequacy	$ 35,603
Common Equity Tier I Risk Based Capital Required for Capital Adequacy to Risk-Weighted Assets	4.50%
Common Equity Tier I Risk Based Capital Required to Be Well Capitalized	$ 51,426
Common Equity Tier I Risk Based Capital Required to Be Well Capitalized to Risk-Weighted Assets	6.50%
Tier I Capital to Average Assets
Tier I Leverage Capital	$ 123,638	$ 119,031
Tier I Leverage Capital to Average Assets	10.74%	10.50%
Tier I Leverage Capital Required for Capital Adequacy	$ 46,064	$ 45,364
Tier I Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Tier I Leverage Capital Required to Be Well Capitalized	$ 57,580	$ 56,705
Tier I Leverage Capital Required to Be Well Capitalized to Average Assets	5.00%	5.00%

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Tier 1 Risk Based Capital as defined in the regulations.

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