Consolidated Statements of Shareholders' Equity (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Sep. 30, 2010	$ 14,000	$ 1,755,000	$ 40,510,000	$ 18,387,000	$ 60,666,000
Balance (in Shares) at Sep. 30, 2010	1,380,746
Net income			7,840,000		7,840,000
Unrealized loss on investments				(3,627,000)	(3,627,000)
Balance at Sep. 30, 2011	14,000	1,755,000	48,350,000	14,760,000	64,879,000
Balance (in Shares) at Sep. 30, 2011	1,380,746
Net income			5,541,000		5,541,000
Unrealized loss on investments				15,085,000	15,085,000
Reclassification adjustment of other-than-temporary impairment losses recognized in net income (net of taxes)				1,720,000	1,720,000
Balance at Sep. 30, 2012	$ 14,000	$ 1,755,000	$ 53,891,000	$ 31,565,000	$ 87,225,000
Balance (in Shares) at Sep. 30, 2012	1,380,746