Loans Receivable - Nonaccrual Loans (Details) (USD $)	Mar. 31, 2015	Sep. 30, 2014
Non-covered loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans receivable	$ 3,410,257	$ 3,508,081
Non-covered loans | 1-4 family residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans receivable	1,465,996	982,087
Non-covered loans | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans receivable	1,869,036	2,369,520
Non-covered loans | Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans receivable	75,225	156,474
Non-covered loans | Real estate construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans receivable	0	0
Non-covered loans | Consumer and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans receivable	0	0
Previously covered
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans receivable	$ 3,600,000	$ 1,300,000