v2.4.1.9

Segment Reporting Industry Segment (Details) (USD $)	12 Months Ended
Segment Reporting Industry Segment (Details) (USD $)	May 31, 2013	May 31, 2012
Industry Segment Revenues:
Investment advisory	$ 194,034fil_InvestmentAdvisory	$ 257,087fil_InvestmentAdvisory
Surety insurance	1,150,621fil_SuretyInsurance	1,576,107fil_SuretyInsurance
Corporate	0fil_Corporate	150,604fil_Corporate
Total revenues	1,344,655fil_TotalRevenues	1,983,798fil_TotalRevenues
Operating Income (Loss):
Investment advisory	19,372fil_InvestmentAdvisory2	73,432fil_InvestmentAdvisory2
Surety insurance	316,038fil_SuretyInsurance1	613,377fil_SuretyInsurance1
Corporate	(2,292,107)fil_Corporate1	(1,792,642)fil_Corporate1
Total operating income (loss)	(1,956,697)fil_TotalOperatingIncomeLoss	(1,105,833)fil_TotalOperatingIncomeLoss
Identifiable Assets:
Investment advisory	51,017fil_InvestmentAdvisory3	60,932fil_InvestmentAdvisory3
Surety insurance	8,349,897fil_SuretyInsurance2	8,739,074fil_SuretyInsurance2
Corporate	83,219fil_Corporate2	88,433fil_Corporate2
Total assets	8,484,133fil_TotalAssets1	8,888,439fil_TotalAssets1
Capital Acquisitions:
Investment advisory	0fil_InvestmentAdvisory4	0fil_InvestmentAdvisory4
Surety insurance	0fil_SuretyInsurance3	0fil_SuretyInsurance3
Corporate	0fil_Corporate3	0fil_Corporate3
Total capital acquisitions	0fil_TotalCapitalAcquisitions	0fil_TotalCapitalAcquisitions
Depreciation Charged to Identifiable Assets:
Investment advisory	45fil_InvestmentAdvisory5	45fil_InvestmentAdvisory5
Surety insurance	7,874fil_SuretyInsurance4	7,874fil_SuretyInsurance4
Corporate	2,766fil_Corporate4	2,817fil_Corporate4
Total Depreciation	10,685fil_TotalDepreciation	10,736fil_TotalDepreciation
Interest Expense:
Investment advisory	0fil_InvestmentAdvisory6	0fil_InvestmentAdvisory6
Surety insurance	0fil_SuretyInsurance5	0fil_SuretyInsurance5
Corporate	1,073,338fil_Corporate5	905,601fil_Corporate5
Total interest expense	$ 1,073,338fil_TotalInterestExpense	$ 905,601fil_TotalInterestExpense

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JACOBS FINANCIAL GROUP, INC. 10-K