Note 11 - Fair Value of Financial Instruments and Fair Value Measurement (Detail) - Quantitative Information about Level 3 Fair Value Measurements (USD $)	3 Months Ended
	Dec. 31, 2012
Fair Value [Member] | Impaired Loans [Member]
Fair Value (in Dollars)	1,352,918
Fair Value [Member] | Real Estate Investment [Member]
Fair Value (in Dollars)	22,444,365
Valuation Technique [Member] | Impaired Loans [Member]
Valuation Techniques	Property appraisals
Valuation Technique [Member] | Real Estate Investment [Member]
Valuation Techniques	Property appraisals
Unobservable Input [Member] | Impaired Loans [Member]
Unobservable Input	Management discount for property type and recent market volatility
Unobservable Input [Member] | Real Estate Investment [Member]
Unobservable Input	Management discount for property type and recent market volatility
Min. [Member] | Impaired Loans [Member]
Range (discount)	21%
Min. [Member] | Real Estate Investment [Member]
Range (discount)	20%
Max. [Member] | Impaired Loans [Member]
Range (discount)	56%
Max. [Member] | Real Estate Investment [Member]
Range (discount)	33%
Impaired Loans [Member]
Weighted Average Discount	46.00%
Real Estate Investment [Member]
Weighted Average Discount	24.00%