Consolidated Statements of Shareholders' Equity - USD ($)	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Sep. 30, 2014	1,805,053	(424,307)
Balance at Sep. 30, 2014	$ 18,000	$ (4,000)	$ 1,755,000	$ 58,301,000	$ 76,301,000	$ 136,371,000
Net (loss) income				810,000		810,000
Unrealized losses on investments, net					(8,811,000)	(8,811,000)
Reclassification adjustment of other-than-temporary impairment losses recognized in net income (net of taxes)					230,000	230,000
Balance (in shares) at Sep. 30, 2015	1,805,053	(424,307)
Balance at Sep. 30, 2015	$ 18,000	$ (4,000)	1,755,000	59,111,000	67,720,000	128,600,000
Net (loss) income				(1,043,000)		(1,043,000)
Unrealized losses on investments, net					(2,214,000)	(2,214,000)
Reclassification adjustment of other-than-temporary impairment losses recognized in net income (net of taxes)
Balance (in shares) at Sep. 30, 2016	1,805,053	(424,307)
Balance at Sep. 30, 2016	$ 18,000	$ (4,000)	1,755,000	58,068,000	65,506,000	125,343,000
Net (loss) income				(918,000)		(918,000)
Unrealized losses on investments, net					35,316,000	35,316,000
Reclassification adjustment of other-than-temporary impairment losses recognized in net income (net of taxes)
Balance (in shares) at Sep. 30, 2017	1,805,053	(424,307)
Balance at Sep. 30, 2017	$ 18,000	$ (4,000)	$ 1,755,000	$ 57,150,000	$ 100,822,000	$ 159,741,000