Loans and Allowance for Loan Losses - Past Due Loans and Nonaccrual Loans (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012
30-89 Days Past Due	$ 191,983,067	$ 6,168,890
Greater than 90 Days	0	0
Total Past Due Loans	1,983,067	6,168,890
Nonaccrual Loans	847,757	25,187
Current Loans	204,956,949	197,973,039
Total loans	207,787,773	204,167,116
Commercial, Financial, And Agricultural Loans [Member]
30-89 Days Past Due	182,332	317,692
Greater than 90 Days	0	0
Total Past Due Loans	182,332	317,692
Nonaccrual Loans	0	0
Current Loans	37,803,475	40,189,110
Total loans	37,985,807	40,506,802
Construction Loans [Member]
30-89 Days Past Due	324,786	306,673
Greater than 90 Days	0	0
Total Past Due Loans	324,786	306,673
Nonaccrual Loans	0	0
Current Loans	16,945,787	16,682,144
Total loans	17,270,573	16,988,817
Commercial Mortgage Loans [Member]
30-89 Days Past Due	889,762	568,127
Greater than 90 Days	0	0
Total Past Due Loans	889,762	568,127
Nonaccrual Loans	181,435	0
Current Loans	74,727,615	69,491,283
Total loans	75,798,812	70,059,410
Residential Loans [Member]
30-89 Days Past Due	528,061	4,923,435
Greater than 90 Days	0	0
Total Past Due Loans	528,061	4,923,435
Nonaccrual Loans	666,322	25,187
Current Loans	60,506,646	57,484,717
Total loans	61,701,029	62,433,339
Agricultural Loans [Member]
30-89 Days Past Due	0	0
Greater than 90 Days	0	0
Total Past Due Loans	0	0
Nonaccrual Loans	0	0
Current Loans	11,447,026	10,169,251
Total loans	11,447,026	10,169,251
Consumer & Other Loans [Member]
30-89 Days Past Due	58,126	52,963
Greater than 90 Days	0	0
Total Past Due Loans	58,126	52,963
Nonaccrual Loans	0	0
Current Loans	3,526,400	3,956,534
Total loans	$ 3,584,526	$ 4,009,497