Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Sep. 30, 2015	13,061,673
Balance at Sep. 30, 2015	$ 131,000	$ 65,011,000	$ 120,611,000	$ (1,685,000)	$ (1,751,000)	$ (997,000)	$ 181,320,000
Stock based compensation expense		283,000					283,000
Net (loss) income			1,806,000			529,000	2,335,000
Unrealized (loss) on marketable securities, net				316,000			316,000
Foreign currency translation, net				242,000			242,000
Distributions to non-controlling interest						(438,000)	(438,000)
Balance (in shares) at Dec. 31, 2015	13,189,977
Balance at Dec. 31, 2015	$ 132,000	65,420,000	122,417,000	(1,127,000)	(8,931,000)	(1,833,000)	176,078,000
Restricted stock (in shares)	5,000
Purchase of treasury stock					(7,180,000)		(7,180,000)
Purchase of subsidiary shares from non-controlling interest		(873,000)				(927,000)	(1,800,000)
Issuance of restricted stock to purchase subsidiary shares from non-controlling interest (in shares)	123,304
Issuance of restricted stock to purchase subsidiary shares from non-controlling interest	$ 1,000	999,000					1,000,000
Balance (in shares) at Sep. 30, 2016	13,336,508
Balance at Sep. 30, 2016	$ 133,000	67,026,000	128,471,000	86,000	$ (12,925,000)	(645,000)	182,146,000
Stock based compensation expense		(6,000)					(6,000)
Net (loss) income			(657,000)			21,000	(636,000)
Unrealized (loss) on marketable securities, net				(1,266,000)			(1,266,000)
Foreign currency translation, net				(348,000)			(348,000)
Distributions to non-controlling interest						(180,000)	(180,000)
Balance (in shares) at Dec. 31, 2016	13,336,508
Balance at Dec. 31, 2016	$ 133,000	$ 67,020,000	$ 127,814,000	$ (1,528,000)		$ (804,000)	$ 179,710,000