Guarantor Subsidiaries (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Condensed Consolidated Statements of Operations [Abstract]
Revenues	$ 57,623	$ 41,812	$ 136,026	$ 93,026
Cost of Revenues	36,736	32,580	89,291	73,422
Gross Profit	20,887	9,232	46,735	19,604
Operating Expenses, Net	9,904	14,094	28,198	29,942
Operating Income (Loss)	10,983	(4,862)	18,537	(10,338)
Interest and Other Income	10	8	24	228
Interest Expense	2,594	2,640	7,824	7,921
Income (Loss) from Continuing Operations before Tax and Equity Account for Subsidiaries	8,399	(7,494)	10,737	(18,031)
Income Tax Expense (Benefit)	3,517	(779)	4,583	(5,307)
Income (Loss) before Loss before Equity Account for Subsidiaries	4,882	(6,715)	6,154	(12,724)
Income (Loss) from Discontinued Operations, Net	(177)	551	(243)	1,728
Net Income (Loss)	4,705	(6,164)	5,911	(10,996)
Parent [Member]
Condensed Consolidated Statements of Operations [Abstract]
Interest and Other Income	2,588	2,633	7,779	7,872
Interest Expense	2,588	2,633	7,779	7,872
Equity Account For Subsidiaries	4,705	(6,164)	5,911	(10,996)
Net Income (Loss)	4,705	(6,164)	5,911	(10,996)
Guarantor Subsidiaries [Member]
Condensed Consolidated Statements of Operations [Abstract]
Revenues	57,623	41,812	136,026	93,026
Cost of Revenues	36,736	32,580	89,291	73,422
Gross Profit	20,887	9,232	46,735	19,604
Operating Expenses, Net	9,904	14,094	28,198	29,942
Operating Income (Loss)	10,983	(4,862)	18,537	(10,338)
Interest and Other Income	10	8	24	228
Interest Expense	2,594	2,640	7,824	7,921
Income (Loss) from Continuing Operations before Tax and Equity Account for Subsidiaries	8,399	(7,494)	10,737	(18,031)
Income Tax Expense (Benefit)	3,517	(779)	4,583	(5,307)
Income (Loss) before Loss before Equity Account for Subsidiaries	4,882	(6,715)	6,154	(12,724)
Income (Loss) from Discontinued Operations, Net	(114)	222	361	1,561
Equity Account For Subsidiaries	(63)	329	(604)	167
Net Income (Loss)	4,705	(6,164)	5,911	(10,996)
Non-Guarantor Subsidiaries [Member]
Condensed Consolidated Statements of Operations [Abstract]
Income (Loss) from Discontinued Operations, Net	(63)	329	(604)	167
Net Income (Loss)	(63)	329	(604)	167
Eliminations [Member]
Condensed Consolidated Statements of Operations [Abstract]
Interest and Other Income	(2,588)	(2,633)	(7,779)	(7,872)
Interest Expense	(2,588)	(2,633)	(7,779)	(7,872)
Equity Account For Subsidiaries	(4,642)	5,835	(5,307)	10,829
Net Income (Loss)	$ (4,642)	$ 5,835	$ (5,307)	$ 10,829