Note 4 - Securities Available for Sale (Detail) - Available for Sale Securities (USD $)	Dec. 31, 2012		Sep. 30, 2012
Other Investment Securities:
Amortized Cost	$ 179,799,286		$ 189,071,181
Gross unrealized gains	2,666,292		3,720,867
Gross unrealized losses	(3,219,396)		(3,412,716)
Securities available for sale	179,246,182		189,379,333
Tax-Free Municipals [Member]
Other Investment Securities:
Amortized Cost	12,122,631		11,555,068
Gross unrealized gains	23,682		25,004
Gross unrealized losses	(1,458)		(1,571)
Securities available for sale	12,144,855		11,578,501
US Government-sponsored Enterprises Debt Securities [Member]
Other Investment Securities:
Amortized Cost	10,123,015		16,519,624
Gross unrealized gains	81,163		107,431
Securities available for sale	10,204,178		16,627,055
Mortgage-Backed FNMA [Member]
Other Investment Securities:
Amortized Cost	88,075,657		84,836,714
Gross unrealized gains	1,163,277		1,748,088
Securities available for sale	89,238,934		86,584,802
Mortgage-Backed GNMA [Member]
Other Investment Securities:
Amortized Cost	4,257,863		4,568,181
Gross unrealized gains	335,957		377,231
Securities available for sale	4,593,820		4,945,412
Mortgage-Backed FHLMC [Member]
Other Investment Securities:
Amortized Cost	41,715,064		45,178,602
Gross unrealized gains	736,557		1,065,844
Gross unrealized losses	(7,410)
Securities available for sale	42,444,211		46,244,446
Collateralized Mortgage Obligations FNMA [Member]
Other Investment Securities:
Amortized Cost	5,993,604		7,712,770
Gross unrealized gains	193,206		314,386
Securities available for sale	6,186,810		8,027,156
Collateralized Mortgage Obligations GNMA [Member]
Other Investment Securities:
Amortized Cost	323,861		499,503
Gross unrealized gains	2,978		3,960
Gross unrealized losses			(152)
Securities available for sale	326,839		503,311
Collateralized Mortgage Obligations FHLMC [Member]
Other Investment Securities:
Amortized Cost	493,861		533,379
Gross unrealized gains	53,573		46,710
Securities available for sale	547,434		580,089
Private Label Mortgage Securities Investment Grade [Member]
Other Investment Securities:
Amortized Cost	2,271,612	[1]	2,480,412
Gross unrealized gains	25,238	[1]	32,214
Gross unrealized losses	(222,462)	[1]	(155,882)
Securities available for sale	2,074,388	[1]	2,356,744
Private Label Mortgage Securities Split Rating [Member]
Other Investment Securities:
Amortized Cost	1,435,267	[1],[2]	6,922,884	[2]
Gross unrealized gains	50,661	[1],[2]		[2]
Gross unrealized losses		[1],[2]	(676,581)	[2]
Securities available for sale	1,485,928	[1],[2]	6,246,303	[2]
Private Label Mortgage Securities Non Investment Grade [Member]
Other Investment Securities:
Amortized Cost	12,986,851	[1]	8,264,044
Gross unrealized gains		[1]
Gross unrealized losses	(2,988,066)	[1]	(2,578,530)
Securities available for sale	$ 9,998,785	[1]	$ 5,685,514

[1] Credit ratings are current as of December 31, 2012.

[2] Bonds with split ratings represent securities with separate investment and non investment grades.