Quantitative Information about Level 3 Fair Value Measurements (Detail) (USD $)	12 Months Ended
	Sep. 30, 2012
Impaired Loans
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 2,925,972
Valuation Technique	Property appraisals
Unobservable Input	Management discount for property type and recent market volatility
Weighted Average Discount	35.00%
Real Estate Investment
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value	$ 24,009,961
Valuation Technique	Property appraisals
Unobservable Input	Management discount for property type and recent market volatility
Weighted Average Discount	31.00%
Minimum \| Impaired Loans
Fair Value Inputs, Assets, Quantitative Information [Line Items]
General Range	10.00%
Minimum \| Real Estate Investment
Fair Value Inputs, Assets, Quantitative Information [Line Items]
General Range	20.00%
Maximum \| Impaired Loans
Fair Value Inputs, Assets, Quantitative Information [Line Items]
General Range	55.00%
Maximum \| Real Estate Investment
Fair Value Inputs, Assets, Quantitative Information [Line Items]
General Range	40.00%

The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings.

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CHARTER FINANCIAL CORP/GA 10-K