Employee Benefits and Retirement Plans (Details Narrative) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Increase decrease in accrued pension liability	$ 55,700	$ 191,451
Changes to other comprehensive income (loss) on pre-tax basis	36,762	126,358
Increase in fair value of plan assets	70,382
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	300,000,000us-gaap_Investments
Expected contribute from employer	606,000	775,000	1,373,343
Estimated amortization amounts, net loss	446,430
Expense incurred	308,124us-gaap_DefinedBenefitPlanOtherChanges	655,310us-gaap_DefinedBenefitPlanOtherChanges	794,090us-gaap_DefinedBenefitPlanOtherChanges
Stock options exercise period		10 years
Common stock authorized for issuance	196,680
Southwest Georgia Bank 401(K) Plan [Member]
Employee contributions	202,233	205,932	192,999
Employee Stock Ownership Plan [Member]
Expected contribute from employer	321,000	275,000	125,000
ESOP holds Corporation's outstanding common stock	324,297
Number of shares are allocated to participants	322,419
Unreleased shares are pledged as collateral	1,878
Long-term debt incurred from repurchasing participants' shares	15,667
Directors and Executive Officers Stock Purchase Plan [Member]
Employee contributions	900
Expense incurred	$ 287,150	$ 272,000	$ 139,325
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	6,503	5,381	6,187
Shares issued at an average price per share	$ 13.70	$ 10.73	$ 9.53
Equity Securities [Member]
Targeted investment portfolio allocated	20.00%

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- Definition

Employee Stock Ownership Plan ESOP Longterm Debt Incurred From Repurchasing Participants Shares

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Employee Stock Ownership Plan ESOP Unreleased Shares Are Pledged As Collateral

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Increase Decrease In Accrued Pension Liability

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Reinvestment Of Common Stock Dividends Voluntary Cash Payments Description

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The increase in the fair value of plan assets from contributions made by the employer.

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The amount of increase or decrease in the fair value of plan assets during the reporting period.

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Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

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No definition available.

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Changes in the defined benefit obligation, not otherwise separately disclosed in the financial statements.

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No definition available.

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Target allocation of investments of this type to total plan assets presented on a weighted average basis.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

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Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis.

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Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis.

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- Definition

The shares or units in an ESOP trust that have been assigned to individual participant accounts based on a known formula. IRS rules require allocations to be nondiscriminatory generally based on compensation, length of service, or a combination of both. For any particular participant such shares or units may be vested, unvested, or partially vested.

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- Definition

Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan.

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- Definition

Amount per share or per unit assigned to the consideration received of equity securities issued for development stage entities.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 915

-SubTopic 215

-Section 45

-Paragraph 1

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Sum of the carrying amounts as of the balance sheet date of all investments.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

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-Name Regulation S-X (SX)

-Number 210

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-Subparagraph h

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Amount before tax, after reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.

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-Publisher FASB

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Number of share instruments newly issued under a share-based compensation plan.

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