Employee Benefits and Retirement Plans (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Increase decrease in accrued pension liability	$ 1,032,035	$ 55,700
Changes to other comprehensive income (loss) on pre-tax basis	(681,143)	36,762
Decreased in fair value of plan assets	$ 469,408
Targeted investment portfolio allocated	30.00%
Targeted investment portfolio is allocated, fixed-income investments, minimum	50.00%
Targeted investment portfolio is allocated, fixed-income investments, maximum	90.00%
Investments	$ 300,000,000
Expected contribute from employer	500,000	606,000	$ 775,000
Estimated amortization amounts, net loss	657,260
Expense incurred	$ 927,935	$ 308,124	655,310
Stock options exercise period		10 years
Common stock authorized for issuance	196,680
Southwest Georgia Bank 401(K) Plan [Member]
Employee contributions	$ 188,338	$ 202,233	205,932
Employee Stock Ownership Plan [Member]
Expected contribute from employer	$ 294,642	321,000	275,000
ESOP holds Corporation's outstanding common stock	300,809
Number of shares are allocated to participants	276,212
Unreleased shares are pledged as collateral	24,597
Long-term debt incurred from repurchasing participants' shares	$ 363,000
Directors and Executive Officers Stock Purchase Plan [Member]
Employee contributions	900
Expense incurred	$ 282,600	$ 287,150	$ 272,000
Dividend Reinvestment And Share Purchase Plan [Member]
Reinvestment of common stock dividends, voluntary cash payments description	not less than $5 nor more than $5,000 per month
Shares issued through the plan	6,702	6,503	5,381
Shares issued at an average price per share	$ 14.73	$ 13.70	$ 10.73
2013 Omnibus Incentive Plan [Member]
Common stock authorized for issuance	125,000
Equity Securities [Member]
Targeted investment portfolio allocated	20.00%