CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total Stockholders' Equity [Member]	Noncontrolling Interests [Member]	Comprehensive (Loss) Income [Member]
Balance at Sep. 30, 2009	$ 140,141	$ 272	$ 277,944	$ (22,471)	$ (100,367)	$ (15,560)	$ 139,818	$ 323
Increase (Decrease) Equity [Roll Forward]
Net income (loss)	(16,675)	0	0	(13,451)	0	0	(13,451)	(3,224)	(16,675)
Issuance of common shares	58	2	56	0	0	0	58	0
Treasury shares issued	382	0	(655)	0	1,037	0	382	0
Stock-based compensation	226	0	226	0	0	0	226	0
Restricted stock awards	2,811	0	2,765	0	0	0	2,765	46
Issuance of warrants in Senior Notes offering	1,042	0	1,042	0	0	0	1,042	0
Cash dividends	(1,636)	0	0	(1,636)	0	0	(1,636)	0
Other	7	0	0	0	0	0	0	7
Other comprehensive income (loss)	2,728	0	0	0	0	2,753	2,753	(25)	2,728
Balance at Sep. 30, 2010	129,084	274	281,378	(37,558)	(99,330)	(12,807)	131,957	(2,873)	(13,947)
Increase (Decrease) Equity [Roll Forward]
Net income (loss)	(7,429)	0	0	(8,228)	0	0	(8,228)	799	(7,429)
Issuance of common shares	1,914	7	1,907	0	0	0	1,914	0
Treasury shares issued	297	0	(320)	0	617	0	297	0
Stock-based compensation	2,228	0	2,188	0	0	0	2,188	40
Repurchases of common stock	(241)	0	0	0	(241)	0	(241)	0
Cash dividends	(2,246)	0	0	(2,246)	0	0	(2,246)	0
Noncontrolling interests related to LEAF	35,951	0	(3,467)	0	0	0	(3,467)	39,418
Other comprehensive income (loss)	(1,830)	0	0	0	0	(1,806)	(1,806)	(24)	(1,830)
Balance at Sep. 30, 2011	157,728	281	281,686	(48,032)	(98,954)	(14,613)	120,368	37,360	(9,259)
Increase (Decrease) Equity [Roll Forward]
Net income (loss)	26,182	0	0	25,834	0	0	25,834	348	26,182
Issuance of common shares	3,843	13	3,830	0	0	0	3,843	0
Treasury shares issued	290	0	(249)	0	539	0	290	0
Stock-based compensation	1,286	0	1,286	0	0	0	1,286	0
Repurchases of common stock	(4,042)	0	0	0	(4,042)	0	(4,042)	0
Cash dividends	(2,310)	0	0	(2,310)	0	0	(2,310)	0
Other	4	0	0	0	0	0	0	4
Deconsolidation of LEAF (see Note 1)	(38,262)	0	(709)	0	0	0	(709)	(37,553)
Other comprehensive income (loss)	1,582	0	0	0	0	1,533	1,533	49	1,582
Balance at Sep. 30, 2012	$ 146,301	$ 294	$ 285,844	$ (24,508)	$ (102,457)	$ (13,080)	$ 146,093	$ 208	$ 27,764