Regulatory Matters (Regulatory capital amounts and ratios) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Tier 1 Risk-Based Core Capital (To Risk Weighted Assets)
Actual, Amount	$ 73,494	$ 70,598
Actual, Ratio	19.20%	17.80%
For Capital Adequacy, Amount	15,335	15,894
For Capital Adequacy, Ratio	4.00%	4.00%
Total Risk-Based Capital (To Risk Weighted Assets)
Actual, Amount	86,567	84,529
Actual, Ratio	22.60%	21.30%
For Capital Adequacy, Amount	30,671	31,788
For Capital Adequacy, Ratio	8.00%	8.00%
Tier 1 Leverage (Core) Capital (To Adjusted Tangible Assets)
Actual, Amount	73,494	70,598
Actual, Ratio	8.70%	8.30%
For Capital Adequacy, Amount	33,635	34,079
For Capital Adequacy, Ratio	4.00%	4.00%
Security Federal Bank [Member]
Tier 1 Risk-Based Core Capital (To Risk Weighted Assets)
Actual, Amount	83,486	81,624
Actual, Ratio	21.80%	20.60%
For Capital Adequacy, Amount	15,324	15,883
For Capital Adequacy, Ratio	4.00%	4.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	22,986	23,825
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.00%	6.00%
Total Risk-Based Capital (To Risk Weighted Assets)
Actual, Amount	88,328	86,652
Actual, Ratio	23.10%	21.80%
For Capital Adequacy, Amount	30,468	31,767
For Capital Adequacy, Ratio	8.00%	8.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	38,309	39,709
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	10.00%	10.00%
Tier 1 Leverage (Core) Capital (To Adjusted Tangible Assets)
Actual, Amount	83,486	81,624
Actual, Ratio	9.90%	9.60%
For Capital Adequacy, Amount	33,624	34,069
For Capital Adequacy, Ratio	4.00%	4.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 42,031	$ 42,586
To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	5.00%	5.00%